21022102222022 has 16 divisors (see below), whose sum is σ = 36210319617600. Its totient is φ = 9052579904040.

The previous prime is 21022102222013. The next prime is 21022102222049. The reversal of 21022102222022 is 22022220122012.

It is a junction number, because it is equal to n+sod(n) for n = 21022102221985 and 21022102222003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25146054872 + ... + 25146055707.

It is an arithmetic number, because the mean of its divisors is an integer number (2263144976100).

Almost surely, 2^{21022102222022} is an apocalyptic number.

21022102222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022102222022 is a deficient number, since it is larger than the sum of its proper divisors (15188217395578).

21022102222022 is a wasteful number, since it uses less digits than its factorization.

21022102222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50292110611.

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

Adding to 21022102222022 its reverse (22022220122012), we get a palindrome (43044322344034).

The spelling of 21022102222022 in words is "twenty-one trillion, twenty-two billion, one hundred two million, two hundred twenty-two thousand, twenty-two".