222820694940 has 24 divisors (see below), whose sum is σ = 623897946000. Its totient is φ = 59418851968.

The previous prime is 222820694939. The next prime is 222820694953. The reversal of 222820694940 is 49496028222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222820694940.

It is a congruent number.

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, 1856839065 + ... + 1856839184.

It is an arithmetic number, because the mean of its divisors is an integer number (25995747750).

Almost surely, 2^222820694940 is an apocalyptic number.

222820694940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222820694940 is an abundant number, since it is smaller than the sum of its proper divisors (401077251060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222820694940 is a wasteful number, since it uses less digits than its factorization.

222820694940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713678261 (or 3713678259 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 222820694940 in words is "two hundred twenty-two billion, eight hundred twenty million, six hundred ninety-four thousand, nine hundred forty".