102022122200021 has 4 divisors (see below), whose sum is σ = 102161306542092. Its totient is φ = 101882937857952.

The previous prime is 102022122199979. The next prime is 102022122200027. The reversal of 102022122200021 is 120002221220201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69917274339025 + 32104847860996 = 8361655^2 + 5666114^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022122200021 - 2⁶ = 102022122199957 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 (102022122200027) 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, 69592169936 + ... + 69592171401.

It is an arithmetic number, because the mean of its divisors is an integer number (25540326635523).

Almost surely, 2^{102022122200021} is an apocalyptic number.

It is an amenable number.

102022122200021 is a deficient number, since it is larger than the sum of its proper divisors (139184342071).

102022122200021 is an equidigital number, since it uses as much as digits as its factorization.

102022122200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139184342070.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102022122200021 its reverse (120002221220201), we get a palindrome (222024343420222).

The spelling of 102022122200021 in words is "one hundred two trillion, twenty-two billion, one hundred twenty-two million, two hundred thousand, twenty-one".