222022112221 has 24 divisors (see below), whose sum is σ = 279943620480. Its totient is φ = 172351348416.

The previous prime is 222022112201. The next prime is 222022112227. The reversal of 222022112221 is 122211220222.

It is not a de Polignac number, because 222022112221 - 2¹⁹ = 222021587933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022112227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1707841 + ... + 1833238.

It is an arithmetic number, because the mean of its divisors is an integer number (11664317520).

Almost surely, 2^222022112221 is an apocalyptic number.

It is an amenable number.

222022112221 is a deficient number, since it is larger than the sum of its proper divisors (57921508259).

222022112221 is a wasteful number, since it uses less digits than its factorization.

222022112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541165 (or 3541152 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222022112221 its reverse (122211220222), we get a palindrome (344233332443).

The spelling of 222022112221 in words is "two hundred twenty-two billion, twenty-two million, one hundred twelve thousand, two hundred twenty-one".