21220112000022 has 32 divisors (see below), whose sum is σ = 45896090365440. Its totient is φ = 6501946123680.

The previous prime is 21220111999993. The next prime is 21220112000023. The reversal of 21220112000022 is 22000021102212.

It is a junction number, because it is equal to n+sod(n) for n = 21220111999965 and 21220112000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220112000023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569129304 + ... + 569166587.

It is an arithmetic number, because the mean of its divisors is an integer number (1434252823920).

Almost surely, 2^{21220112000022} is an apocalyptic number.

21220112000022 is an abundant number, since it is smaller than the sum of its proper divisors (24675978365418).

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

21220112000022 is a wasteful number, since it uses less digits than its factorization.

21220112000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138296148.

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

Adding to 21220112000022 its reverse (22000021102212), we get a palindrome (43220133102234).

The spelling of 21220112000022 in words is "twenty-one trillion, two hundred twenty billion, one hundred twelve million, twenty-two", and thus it is an aban number.