22021102022022 has 20 divisors (see below), whose sum is σ = 49343580457116. Its totient is φ = 7340367340620.

The previous prime is 22021102021999. The next prime is 22021102022063. The reversal of 22021102022022 is 22022020112022.

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 = 22021102021986 and 22021102022004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 67966364104 + ... + 67966364427.

Almost surely, 2^{22021102022022} is an apocalyptic number.

22021102022022 is an abundant number, since it is smaller than the sum of its proper divisors (27322478435094).

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

22021102022022 is a wasteful number, since it uses less digits than its factorization.

22021102022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135932728545 (or 135932728536 counting only the distinct ones).

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

Adding to 22021102022022 its reverse (22022020112022), we get a palindrome (44043122134044).

Subtracting 22021102022022 from its reverse (22022020112022), we obtain a square (918090000 = 30300²).

The spelling of 22021102022022 in words is "twenty-two trillion, twenty-one billion, one hundred two million, twenty-two thousand, twenty-two".