12971210955 has 16 divisors (see below), whose sum is σ = 20757207840. Its totient is φ = 6916889088.

The previous prime is 12971210951. The next prime is 12971210963. The reversal of 12971210955 is 55901217921.

It is not a de Polignac number, because 12971210955 - 2² = 12971210951 is a prime.

It is a super-2 number, since 2×12971210955² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12971210951) 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, 35301 + ... + 164889.

It is an arithmetic number, because the mean of its divisors is an integer number (1297325490).

Almost surely, 2^12971210955 is an apocalyptic number.

12971210955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12971210955 is a deficient number, since it is larger than the sum of its proper divisors (7785996885).

12971210955 is a wasteful number, since it uses less digits than its factorization.

12971210955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136270.

The product of its (nonzero) digits is 56700, while the sum is 42.

The spelling of 12971210955 in words is "twelve billion, nine hundred seventy-one million, two hundred ten thousand, nine hundred fifty-five".