221231112022 has 32 divisors (see below), whose sum is σ = 352831115520. Its totient is φ = 103738773600.

The previous prime is 221231112019. The next prime is 221231112031. The reversal of 221231112022 is 220211132122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12911553 + ... + 12928675.

It is an arithmetic number, because the mean of its divisors is an integer number (11025972360).

Almost surely, 2^221231112022 is an apocalyptic number.

221231112022 is a deficient number, since it is larger than the sum of its proper divisors (131600003498).

221231112022 is a wasteful number, since it uses less digits than its factorization.

221231112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20548.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221231112022 its reverse (220211132122), we get a palindrome (441442244144).

The spelling of 221231112022 in words is "two hundred twenty-one billion, two hundred thirty-one million, one hundred twelve thousand, twenty-two".