21120120011022 has 64 divisors (see below), whose sum is σ = 44604922406400. Its totient is φ = 6648299544960.

The previous prime is 21120120011021. The next prime is 21120120011027. The reversal of 21120120011022 is 22011002102112.

It is a junction number, because it is equal to n+sod(n) for n = 21120120010992 and 21120120011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120120011021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104546872 + ... + 104748692.

It is an arithmetic number, because the mean of its divisors is an integer number (696951912600).

Almost surely, 2^{21120120011022} is an apocalyptic number.

21120120011022 is an abundant number, since it is smaller than the sum of its proper divisors (23484802395378).

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

21120120011022 is a wasteful number, since it uses less digits than its factorization.

21120120011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204761.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21120120011022 its reverse (22011002102112), we get a palindrome (43131122113134).

The spelling of 21120120011022 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, eleven thousand, twenty-two".