12372037210821 has 32 divisors (see below), whose sum is σ = 16784922083328. Its totient is φ = 8104675367360.

The previous prime is 12372037210811. The next prime is 12372037210879. The reversal of 12372037210821 is 12801273027321.

It is a cyclic number.

It is not a de Polignac number, because 12372037210821 - 2⁷ = 12372037210693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12372037210821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12372037210811) 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, 357483700 + ... + 357518306.

It is an arithmetic number, because the mean of its divisors is an integer number (524528815104).

Almost surely, 2^{12372037210821} is an apocalyptic number.

It is an amenable number.

12372037210821 is a deficient number, since it is larger than the sum of its proper divisors (4412884872507).

12372037210821 is a wasteful number, since it uses less digits than its factorization.

12372037210821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42401.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 12372037210821 in words is "twelve trillion, three hundred seventy-two billion, thirty-seven million, two hundred ten thousand, eight hundred twenty-one".