39917231222 has 32 divisors (see below), whose sum is σ = 65503620000. Its totient is φ = 18093024000.

The previous prime is 39917231203. The next prime is 39917231231. The reversal of 39917231222 is 22213271993.

It is a super-2 number, since 2×39917231222² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39917231222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20479904 + ... + 20481852.

It is an arithmetic number, because the mean of its divisors is an integer number (2046988125).

Almost surely, 2^39917231222 is an apocalyptic number.

39917231222 is a deficient number, since it is larger than the sum of its proper divisors (25586388778).

39917231222 is a wasteful number, since it uses less digits than its factorization.

39917231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112.

The product of its digits is 81648, while the sum is 41.

The spelling of 39917231222 in words is "thirty-nine billion, nine hundred seventeen million, two hundred thirty-one thousand, two hundred twenty-two".