12522052155 has 32 divisors (see below), whose sum is σ = 20424130560. Its totient is φ = 6548946560.

The previous prime is 12522052097. The next prime is 12522052157. The reversal of 12522052155 is 55125022521.

It is not a de Polignac number, because 12522052155 - 2⁶ = 12522052091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12522052157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2286070 + ... + 2291540.

It is an arithmetic number, because the mean of its divisors is an integer number (638254080).

Almost surely, 2^12522052155 is an apocalyptic number.

12522052155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12522052155 is a deficient number, since it is larger than the sum of its proper divisors (7902078405).

12522052155 is a wasteful number, since it uses less digits than its factorization.

12522052155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411.

The product of its (nonzero) digits is 10000, while the sum is 30.

Adding to 12522052155 its reverse (55125022521), we get a palindrome (67647074676).

The spelling of 12522052155 in words is "twelve billion, five hundred twenty-two million, fifty-two thousand, one hundred fifty-five".