222023132121 has 24 divisors (see below), whose sum is σ = 347521722240. Its totient is φ = 125706403872.

The previous prime is 222023132083. The next prime is 222023132143. The reversal of 222023132121 is 121231320222.

It is not a de Polignac number, because 222023132121 - 2¹⁷ = 222023001049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222023132161) 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, 6912241 + ... + 6944286.

It is an arithmetic number, because the mean of its divisors is an integer number (14480071760).

Almost surely, 2^222023132121 is an apocalyptic number.

222023132121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222023132121 is a deficient number, since it is larger than the sum of its proper divisors (125498590119).

222023132121 is a wasteful number, since it uses less digits than its factorization.

222023132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856653 (or 13856646 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 222023132121 its reverse (121231320222), we get a palindrome (343254452343).

The spelling of 222023132121 in words is "two hundred twenty-two billion, twenty-three million, one hundred thirty-two thousand, one hundred twenty-one".