122973218 has 8 divisors (see below), whose sum is σ = 190410240. Its totient is φ = 59503140.

The previous prime is 122973209. The next prime is 122973239. The reversal of 122973218 is 812379221.

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

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, 991658 + ... + 991781.

It is an arithmetic number, because the mean of its divisors is an integer number (23801280).

Almost surely, 2^122973218 is an apocalyptic number.

122973218 is a deficient number, since it is larger than the sum of its proper divisors (67437022).

122973218 is a wasteful number, since it uses less digits than its factorization.

122973218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983472.

The product of its digits is 12096, while the sum is 35.

The square root of 122973218 is about 11089.3290148683. The cubic root of 122973218 is about 497.2828853219.

It can be divided in two parts, 1229 and 73218, that added together give a palindrome (74447).

The spelling of 122973218 in words is "one hundred twenty-two million, nine hundred seventy-three thousand, two hundred eighteen".