172122239522 has 8 divisors (see below), whose sum is σ = 271771957200. Its totient is φ = 81531587124.

The previous prime is 172122239519. The next prime is 172122239537. The reversal of 172122239522 is 225932221271.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 4529532619 = 172122239522 / (1 + 7 + 2 + 1 + 2 + 2 + 2 + 3 + 9 + 5 + 2 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264766272 + ... + 2264766347.

It is an arithmetic number, because the mean of its divisors is an integer number (33971494650).

Almost surely, 2^172122239522 is an apocalyptic number.

172122239522 is a deficient number, since it is larger than the sum of its proper divisors (99649717678).

172122239522 is a wasteful number, since it uses less digits than its factorization.

172122239522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529532640.

The product of its digits is 60480, while the sum is 38.

The spelling of 172122239522 in words is "one hundred seventy-two billion, one hundred twenty-two million, two hundred thirty-nine thousand, five hundred twenty-two".