22102022210021 has 12 divisors (see below), whose sum is σ = 23934571270020. Its totient is φ = 20400492228480.

The previous prime is 22102022209951. The next prime is 22102022210111. The reversal of 22102022210021 is 12001222020122.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8761185604900 + 13340836605121 = 2959930^2 + 3652511^2 .

It is not a de Polignac number, because 22102022210021 - 2²⁶ = 22101955101157 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 (22102022213021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1884920 + ... + 6910641.

It is an arithmetic number, because the mean of its divisors is an integer number (1994547605835).

Almost surely, 2^{22102022210021} is an apocalyptic number.

It is an amenable number.

22102022210021 is a deficient number, since it is larger than the sum of its proper divisors (1832549059999).

22102022210021 is a wasteful number, since it uses less digits than its factorization.

22102022210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8810456 (or 8810443 counting only the distinct ones).

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

Adding to 22102022210021 its reverse (12001222020122), we get a palindrome (34103244230143).

The spelling of 22102022210021 in words is "twenty-two trillion, one hundred two billion, twenty-two million, two hundred ten thousand, twenty-one".