13122231155 has 32 divisors (see below), whose sum is σ = 18176279040. Its totient is φ = 8994170880.

The previous prime is 13122231127. The next prime is 13122231169. The reversal of 13122231155 is 55113222131.

It is not a de Polignac number, because 13122231155 - 2¹² = 13122227059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169154 + ... + 234216.

It is an arithmetic number, because the mean of its divisors is an integer number (568008720).

Almost surely, 2^13122231155 is an apocalyptic number.

13122231155 is a deficient number, since it is larger than the sum of its proper divisors (5054047885).

13122231155 is a wasteful number, since it uses less digits than its factorization.

13122231155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65291.

The product of its digits is 1800, while the sum is 26.

Adding to 13122231155 its reverse (55113222131), we get a palindrome (68235453286).

The spelling of 13122231155 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred fifty-five".