21010100112210 has 96 divisors (see below), whose sum is σ = 57212894624256. Its totient is φ = 4929055718400.

The previous prime is 21010100112173. The next prime is 21010100112217. The reversal of 21010100112210 is 1221100101012.

It is not an unprimeable number, because it can be changed into a prime (21010100112217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93240799 + ... + 93465858.

It is an arithmetic number, because the mean of its divisors is an integer number (595967652336).

Almost surely, 2^{21010100112210} is an apocalyptic number.

21010100112210 is an abundant number, since it is smaller than the sum of its proper divisors (36202794512046).

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

21010100112210 is a wasteful number, since it uses less digits than its factorization.

21010100112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186706720 (or 186706709 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21010100112210 its reverse (1221100101012), we get a palindrome (22231200213222).

The spelling of 21010100112210 in words is "twenty-one trillion, ten billion, one hundred million, one hundred twelve thousand, two hundred ten".