21222000011022 has 32 divisors (see below), whose sum is σ = 42463810082304. Its totient is φ = 7070698958400.

The previous prime is 21222000010997. The next prime is 21222000011033. The reversal of 21222000011022 is 22011000022212.

It is a junction number, because it is equal to n+sod(n) for n = 21222000010992 and 21222000011010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144513298 + ... + 144660074.

It is an arithmetic number, because the mean of its divisors is an integer number (1326994065072).

Almost surely, 2^{21222000011022} is an apocalyptic number.

21222000011022 is an abundant number, since it is smaller than the sum of its proper divisors (21241810071282).

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

21222000011022 is a wasteful number, since it uses less digits than its factorization.

21222000011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157864.

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

Adding to 21222000011022 its reverse (22011000022212), we get a palindrome (43233000033234).

The spelling of 21222000011022 in words is "twenty-one trillion, two hundred twenty-two billion, eleven thousand, twenty-two".