21211102022110 has 128 divisors (see below), whose sum is σ = 51770188689408. Its totient is φ = 6042271680000.

The previous prime is 21211102022107. The next prime is 21211102022113. The reversal of 21211102022110 is 1122020111212.

21211102022110 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (21211102022107) and next prime (21211102022113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21211102022113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9479046 + ... + 11501065.

It is an arithmetic number, because the mean of its divisors is an integer number (404454599136).

Almost surely, 2^{21211102022110} is an apocalyptic number.

21211102022110 is an abundant number, since it is smaller than the sum of its proper divisors (30559086667298).

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

21211102022110 is a wasteful number, since it uses less digits than its factorization.

21211102022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20980250.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21211102022110 its reverse (1122020111212), we get a palindrome (22333122133322).

The spelling of 21211102022110 in words is "twenty-one trillion, two hundred eleven billion, one hundred two million, twenty-two thousand, one hundred ten".