212656121425113 has 16 divisors (see below), whose sum is σ = 311441459297280. Its totient is φ = 128469601958544.

The previous prime is 212656121425091. The next prime is 212656121425129. The reversal of 212656121425113 is 311524121656212.

212656121425113 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212656121425113 - 2³⁰ = 212655047683289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212656121425513) 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, 81104545381 + ... + 81104548002.

It is an arithmetic number, because the mean of its divisors is an integer number (19465091206080).

Almost surely, 2^{212656121425113} is an apocalyptic number.

212656121425113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212656121425113 is a deficient number, since it is larger than the sum of its proper divisors (98785337872167).

212656121425113 is a wasteful number, since it uses less digits than its factorization.

212656121425113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162209093428.

The product of its digits is 172800, while the sum is 42.

The spelling of 212656121425113 in words is "two hundred twelve trillion, six hundred fifty-six billion, one hundred twenty-one million, four hundred twenty-five thousand, one hundred thirteen".