125322922821 has 8 divisors (see below), whose sum is σ = 167104402560. Its totient is φ = 83545029152.

The previous prime is 125322922759. The next prime is 125322922831. The reversal of 125322922821 is 128229223521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125322922821 - 2¹⁰ = 125322921797 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125322922821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125322922831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813885 + ... + 955538.

It is an arithmetic number, because the mean of its divisors is an integer number (20888050320).

Almost surely, 2^125322922821 is an apocalyptic number.

It is an amenable number.

125322922821 is a deficient number, since it is larger than the sum of its proper divisors (41781479739).

125322922821 is a wasteful number, since it uses less digits than its factorization.

125322922821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793035.

The product of its digits is 69120, while the sum is 39.

The spelling of 125322922821 in words is "one hundred twenty-five billion, three hundred twenty-two million, nine hundred twenty-two thousand, eight hundred twenty-one".