83175222921 has 12 divisors (see below), whose sum is σ = 129006468432. Its totient is φ = 47528698728.

The previous prime is 83175222899. The next prime is 83175222931. The reversal of 83175222921 is 12922257138.

It is not a de Polignac number, because 83175222921 - 2⁹ = 83175222409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83175222931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282908775 + ... + 282909068.

It is an arithmetic number, because the mean of its divisors is an integer number (10750539036).

Almost surely, 2^83175222921 is an apocalyptic number.

It is an amenable number.

83175222921 is a deficient number, since it is larger than the sum of its proper divisors (45831245511).

83175222921 is a wasteful number, since it uses less digits than its factorization.

83175222921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565817860 (or 565817853 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The spelling of 83175222921 in words is "eighty-three billion, one hundred seventy-five million, two hundred twenty-two thousand, nine hundred twenty-one".