222221223120 has 120 divisors (see below), whose sum is σ = 745953389856. Its totient is φ = 54700598784.

The previous prime is 222221223097. The next prime is 222221223137. The reversal of 222221223120 is 21322122222.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2698854 + ... + 2779973.

Almost surely, 2^222221223120 is an apocalyptic number.

222221223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221223120 is an abundant number, since it is smaller than the sum of its proper divisors (523732166736).

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

222221223120 is a wasteful number, since it uses less digits than its factorization.

222221223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478869 (or 5478850 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222221223120 its reverse (21322122222), we get a palindrome (243543345342).

The spelling of 222221223120 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty".