2221918192222 has 16 divisors (see below), whose sum is σ = 3366307086912. Its totient is φ = 1099818647200.

The previous prime is 2221918192189. The next prime is 2221918192229. The reversal of 2221918192222 is 2222918191222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221918192229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885963 + ... + 2286649.

It is an arithmetic number, because the mean of its divisors is an integer number (210394192932).

Almost surely, 2^{2221918192222} is an apocalyptic number.

2221918192222 is a deficient number, since it is larger than the sum of its proper divisors (1144388894690).

2221918192222 is a wasteful number, since it uses less digits than its factorization.

2221918192222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408643.

The product of its digits is 82944, while the sum is 43.

The spelling of 2221918192222 in words is "two trillion, two hundred twenty-one billion, nine hundred eighteen million, one hundred ninety-two thousand, two hundred twenty-two".