322125488721 has 9 divisors (see below), whose sum is σ = 465294832041. Its totient is φ = 214749190692.

The previous prime is 322125488627. The next prime is 322125488749. The reversal of 322125488721 is 127884521223.

The square root of 322125488721 is 567561.

It is a perfect power (a square), and thus also a powerful number.

322125488721 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 2 + 548 + 87 + 21 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-322125488721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (322125488761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1608090 + ... + 1797276.

Almost surely, 2^322125488721 is an apocalyptic number.

322125488721 is the 567561-st square number.

322125488721 is the 283781-st centered octagonal number.

It is an amenable number.

322125488721 is a deficient number, since it is larger than the sum of its proper divisors (143169343320).

322125488721 is an frugal number, since it uses more digits than its factorization.

322125488721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378380 (or 189190 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 322125488721 in words is "three hundred twenty-two billion, one hundred twenty-five million, four hundred eighty-eight thousand, seven hundred twenty-one".