13212502155 has 12 divisors (see below), whose sum is σ = 22901670480. Its totient is φ = 7046667792.

The previous prime is 13212502141. The next prime is 13212502181. The reversal of 13212502155 is 55120521231.

13212502155 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 2 + 502 + 155 = 666.

It is not a de Polignac number, because 13212502155 - 2⁶ = 13212502091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146805535 + ... + 146805624.

It is an arithmetic number, because the mean of its divisors is an integer number (1908472540).

Almost surely, 2^13212502155 is an apocalyptic number.

13212502155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13212502155 is a deficient number, since it is larger than the sum of its proper divisors (9689168325).

13212502155 is a wasteful number, since it uses less digits than its factorization.

13212502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293611170 (or 293611167 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 13212502155 in words is "thirteen billion, two hundred twelve million, five hundred two thousand, one hundred fifty-five".