10055156121 has 12 divisors (see below), whose sum is σ = 14575440048. Its totient is φ = 6679748664.

The previous prime is 10055156113. The next prime is 10055156201. The reversal of 10055156121 is 12165155001.

10055156121 is a `hidden beast` number, since 100 + 551 + 5 + 6 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 10055156121 - 2³ = 10055156113 is a prime.

It is a super-2 number, since 2×10055156121² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10055157121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1971375 + ... + 1976468.

It is an arithmetic number, because the mean of its divisors is an integer number (1214620004).

Almost surely, 2^10055156121 is an apocalyptic number.

It is an amenable number.

10055156121 is a deficient number, since it is larger than the sum of its proper divisors (4520283927).

10055156121 is a wasteful number, since it uses less digits than its factorization.

10055156121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948132 (or 3948129 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

It can be divided in two parts, 10055 and 156121, that added together give a triangular number (166176 = T₅₇₆).

The spelling of 10055156121 in words is "ten billion, fifty-five million, one hundred fifty-six thousand, one hundred twenty-one".