22218857332442 has 16 divisors (see below), whose sum is σ = 33585072383520. Its totient is φ = 11023914226512.

The previous prime is 22218857332439. The next prime is 22218857332457. The reversal of 22218857332442 is 24423375881222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19705928 + ... + 20802915.

It is an arithmetic number, because the mean of its divisors is an integer number (2099067023970).

Almost surely, 2^{22218857332442} is an apocalyptic number.

22218857332442 is a deficient number, since it is larger than the sum of its proper divisors (11366215051078).

22218857332442 is a wasteful number, since it uses less digits than its factorization.

22218857332442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40510957.

The product of its digits is 10321920, while the sum is 53.

The spelling of 22218857332442 in words is "twenty-two trillion, two hundred eighteen billion, eight hundred fifty-seven million, three hundred thirty-two thousand, four hundred forty-two".