222121022320 has 40 divisors (see below), whose sum is σ = 516460131936. Its totient is φ = 88843461888.

The previous prime is 222121022309. The next prime is 222121022377. The reversal of 222121022320 is 23220121222.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1592514 + ... + 1726366.

Almost surely, 2^222121022320 is an apocalyptic number.

222121022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121022320 is an abundant number, since it is smaller than the sum of its proper divisors (294339109616).

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

222121022320 is a wasteful number, since it uses less digits than its factorization.

222121022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154609 (or 154603 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222121022320 its reverse (23220121222), we get a palindrome (245341143542).

The spelling of 222121022320 in words is "two hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, three hundred twenty".