22122301000021 has 4 divisors (see below), whose sum is σ = 22122581864992. Its totient is φ = 22122020135052.

The previous prime is 22122300999989. The next prime is 22122301000043. The reversal of 22122301000021 is 12000010322122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22122301000021 - 2⁵ = 22122300999989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122300999959 and 22122301000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122301000621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140314305 + ... + 140471878.

It is an arithmetic number, because the mean of its divisors is an integer number (5530645466248).

Almost surely, 2^{22122301000021} is an apocalyptic number.

It is an amenable number.

22122301000021 is a deficient number, since it is larger than the sum of its proper divisors (280864971).

22122301000021 is an equidigital number, since it uses as much as digits as its factorization.

22122301000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280864970.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22122301000021 its reverse (12000010322122), we get a palindrome (34122311322143).

The spelling of 22122301000021 in words is "twenty-two trillion, one hundred twenty-two billion, three hundred one million, twenty-one", and thus it is an aban number.