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1210033020020 = 225111491932991
BaseRepresentation
bin10001100110111011100…
…101101001110001110100
311021200022021121100001112
4101212323211221301310
5124311121423120040
62323514223014152
7153264513652166
oct21467345516164
94250267540045
101210033020020
11427199104580
1217661973a358
138a14b096946
14427ccc04936
152172091c365
hex119bb969c74

1210033020020 has 144 divisors (see below), whose sum is σ = 2808045273600. Its totient is φ = 434355609600.

The previous prime is 1210033019959. The next prime is 1210033020029. The reversal of 1210033020020 is 200203300121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210033019977 and 1210033020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210033020029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1221021725 + ... + 1221022715.

It is an arithmetic number, because the mean of its divisors is an integer number (19500314400).

Almost surely, 21210033020020 is an apocalyptic number.

1210033020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210033020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404022636800).

1210033020020 is an abundant number, since it is smaller than the sum of its proper divisors (1598012253580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210033020020 is a wasteful number, since it uses less digits than its factorization.

1210033020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1210033020020 its reverse (200203300121), we get a palindrome (1410236320141).

The spelling of 1210033020020 in words is "one trillion, two hundred ten billion, thirty-three million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 149 193 220 298 386 596 745 772 965 991 1490 1639 1930 1982 2123 2980 3278 3860 3964 4246 4955 6556 8195 8492 9910 10615 10901 16390 19820 21230 21802 28757 32780 37249 42460 43604 54505 57514 74498 109010 115028 143785 147659 148996 186245 191263 218020 287570 295318 316327 372490 382526 409739 575140 590636 632654 738295 744980 765052 819478 956315 1265308 1476590 1581635 1624249 1638956 1912630 2048695 2103893 2953180 3163270 3248498 3825260 4097390 4207786 5550101 6326540 6496996 8121245 8194780 8415572 10519465 11100202 16242490 21038930 22200404 27750505 28498187 32484980 36913759 42077860 55501010 56996374 61051111 73827518 111002020 113992748 122102222 142490935 147655036 184568795 244204444 284981870 305255555 313480057 369137590 406051349 569963740 610511110 626960114 738275180 812102698 1221022220 1253920228 1567400285 1624205396 2030256745 3134800570 4060513490 5500150091 6269601140 8121026980 11000300182 22000600364 27500750455 55001500910 60501651001 110003001820 121003302002 242006604004 302508255005 605016510010 1210033020020