12041621125 has 24 divisors (see below), whose sum is σ = 15278931720. Its totient is φ = 9475008000.

The previous prime is 12041621117. The next prime is 12041621131. The reversal of 12041621125 is 52112614021.

It can be written as a sum of positive squares in 12 ways, for example, as 11273555329 + 768065796 = 106177^2 + 27714^2 .

It is not a de Polignac number, because 12041621125 - 2³ = 12041621117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 12041621125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452181 + ... + 478069.

It is an arithmetic number, because the mean of its divisors is an integer number (636622155).

Almost surely, 2^12041621125 is an apocalyptic number.

It is an amenable number.

12041621125 is a deficient number, since it is larger than the sum of its proper divisors (3237310595).

12041621125 is an frugal number, since it uses more digits than its factorization.

12041621125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26026 (or 25955 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 12041621125 in words is "twelve billion, forty-one million, six hundred twenty-one thousand, one hundred twenty-five".