22000222001121 has 72 divisors (see below), whose sum is σ = 36766659827520. Its totient is φ = 11457608602752.

The previous prime is 22000222001081. The next prime is 22000222001123. The reversal of 22000222001121 is 12110022200022.

It is not a de Polignac number, because 22000222001121 - 2²⁶ = 22000154892257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22000222001121.

It is not an unprimeable number, because it can be changed into a prime (22000222001123) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21652675 + ... + 22645943.

It is an arithmetic number, because the mean of its divisors is an integer number (510648053160).

Almost surely, 2^{22000222001121} is an apocalyptic number.

22000222001121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22000222001121 is a deficient number, since it is larger than the sum of its proper divisors (14766437826399).

22000222001121 is an equidigital number, since it uses as much as digits as its factorization.

22000222001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993463 (or 993371 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22000222001121 its reverse (12110022200022), we get a palindrome (34110244201143).

The spelling of 22000222001121 in words is "twenty-two trillion, two hundred twenty-two million, one thousand, one hundred twenty-one".