222120232021 has 16 divisors (see below), whose sum is σ = 225775105920. Its totient is φ = 218496484800.

The previous prime is 222120231973. The next prime is 222120232027. The reversal of 222120232021 is 120232021222.

It is a cyclic number.

It is not a de Polignac number, because 222120232021 - 2¹⁵ = 222120199253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222120232021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120232027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22429171 + ... + 22439071.

It is an arithmetic number, because the mean of its divisors is an integer number (14110944120).

Almost surely, 2^222120232021 is an apocalyptic number.

It is an amenable number.

222120232021 is a deficient number, since it is larger than the sum of its proper divisors (3654873899).

222120232021 is a wasteful number, since it uses less digits than its factorization.

222120232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436.

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

Adding to 222120232021 its reverse (120232021222), we get a palindrome (342352253243).

The spelling of 222120232021 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred thirty-two thousand, twenty-one".