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2212122211020 = 223354096522613
BaseRepresentation
bin100000001100001100110…
…000100011001011001100
321211110212121012122211000
4200030030300203023030
5242220411241223040
64412122424100300
7315551310356121
oct40141460431314
97743777178730
102212122211020
117831793555a7
122b8883304690
131307aa137477
14790d28c2748
153c8207b3130
hex2030cc232cc

2212122211020 has 48 divisors (see below), whose sum is σ = 6882157991520. Its totient is φ = 589899256128.

The previous prime is 2212122210979. The next prime is 2212122211027. The reversal of 2212122211020 is 201122212122.

It is a happy number.

2212122211020 is a `hidden beast` number, since 221 + 212 + 2 + 211 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212122210984 and 2212122211002.

It is not an unprimeable number, because it can be changed into a prime (2212122211027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2048260767 + ... + 2048261846.

It is an arithmetic number, because the mean of its divisors is an integer number (143378291490).

Almost surely, 22212122211020 is an apocalyptic number.

2212122211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212122211020 is an abundant number, since it is smaller than the sum of its proper divisors (4670035780500).

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

2212122211020 is a wasteful number, since it uses less digits than its factorization.

2212122211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096522631 (or 4096522623 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212122211020 its reverse (201122212122), we get a palindrome (2413244423142).

The spelling of 2212122211020 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 4096522613 8193045226 12289567839 16386090452 20482613065 24579135678 36868703517 40965226130 49158271356 61447839195 73737407034 81930452260 110606110551 122895678390 147474814068 184343517585 221212221102 245791356780 368687035170 442424442204 553030552755 737374070340 1106061105510 2212122211020