21202022102022 has 48 divisors (see below), whose sum is σ = 48300922695168. Its totient is φ = 6708461451120.

The previous prime is 21202022101987. The next prime is 21202022102039. The reversal of 21202022102022 is 22020122020212.

21202022102022 is a `hidden beast` number, since 212 + 0 + 202 + 210 + 20 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21202022101986 and 21202022102004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195413758 + ... + 195522225.

It is an arithmetic number, because the mean of its divisors is an integer number (1006269222816).

Almost surely, 2^{21202022102022} is an apocalyptic number.

21202022102022 is an abundant number, since it is smaller than the sum of its proper divisors (27098900593146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202022102022 is a wasteful number, since it uses less digits than its factorization.

21202022102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390936145 (or 390936142 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 21202022102022 its reverse (22020122020212), we get a palindrome (43222144122234).

It can be divided in two parts, 2120202 and 2102022, that added together give a palindrome (4222224).

The spelling of 21202022102022 in words is "twenty-one trillion, two hundred two billion, twenty-two million, one hundred two thousand, twenty-two".