21222000101022 has 48 divisors (see below), whose sum is σ = 51972245159040. Its totient is φ = 5744300777712.

The previous prime is 21222000101011. The next prime is 21222000101069. The reversal of 21222000101022 is 22010100022212.

It is a junction number, because it is equal to n+sod(n) for n = 21222000100992 and 21222000101010.

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, 1899564778 + ... + 1899575949.

It is an arithmetic number, because the mean of its divisors is an integer number (1082755107480).

Almost surely, 2^{21222000101022} is an apocalyptic number.

21222000101022 is an abundant number, since it is smaller than the sum of its proper divisors (30750245058018).

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

21222000101022 is a wasteful number, since it uses less digits than its factorization.

21222000101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799140765 (or 3799140758 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21222000101022 its reverse (22010100022212), we get a palindrome (43232100123234).

The spelling of 21222000101022 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred one thousand, twenty-two".