202210022222021 has 4 divisors (see below), whose sum is σ = 220592751514944. Its totient is φ = 183827292929100.

The previous prime is 202210022221969. The next prime is 202210022222093. The reversal of 202210022222021 is 120222220012202.

202210022222021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202210022222021 - 2³⁸ = 201935144315077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202210022221984 and 202210022222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210022222521) 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, 9191364646445 + ... + 9191364646466.

It is an arithmetic number, because the mean of its divisors is an integer number (55148187878736).

Almost surely, 2^{202210022222021} is an apocalyptic number.

It is an amenable number.

202210022222021 is a deficient number, since it is larger than the sum of its proper divisors (18382729292923).

202210022222021 is a wasteful number, since it uses less digits than its factorization.

202210022222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18382729292922.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202210022222021 its reverse (120222220012202), we get a palindrome (322432242234223).

The spelling of 202210022222021 in words is "two hundred two trillion, two hundred ten billion, twenty-two million, two hundred twenty-two thousand, twenty-one".