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212022202012 = 221743577125669
BaseRepresentation
bin1100010101110110000…
…0100000111010011100
3202021021012011211021121
43011131200200322130
511433210140431022
6241222431340324
721214051660435
oct3053540407234
9667235154247
10212022202012
1181a11007545
12351119816a4
1316cbbc5848a
14a394a3c48c
1557adb2d2c7
hex315d820e9c

212022202012 has 48 divisors (see below), whose sum is σ = 402700969440. Its totient is φ = 97285128192.

The previous prime is 212022201947. The next prime is 212022202013. The reversal of 212022202012 is 210202220212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1624314 + ... + 1749982.

It is an arithmetic number, because the mean of its divisors is an integer number (8389603530).

Almost surely, 2212022202012 is an apocalyptic number.

It is an amenable number.

212022202012 is a deficient number, since it is larger than the sum of its proper divisors (190678767428).

212022202012 is a wasteful number, since it uses less digits than its factorization.

212022202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126310 (or 126308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212022202012 its reverse (210202220212), we get a palindrome (422224422224).

The spelling of 212022202012 in words is "two hundred twelve billion, twenty-two million, two hundred two thousand, twelve".

Divisors: 1 2 4 17 34 43 68 86 172 577 731 1154 1462 2308 2924 9809 19618 24811 39236 49622 99244 125669 251338 421787 502676 843574 1687148 2136373 4272746 5403767 8545492 10807534 21615068 72511013 91864039 145022026 183728078 290044052 367456156 1232687221 2465374442 3117973559 4930748884 6235947118 12471894236 53005550503 106011101006 212022202012