21130011232210 has 16 divisors (see below), whose sum is σ = 38034464365656. Its totient is φ = 8451905793408.

The previous prime is 21130011232163. The next prime is 21130011232237. The reversal of 21130011232210 is 1223211003112.

It can be written as a sum of positive squares in 4 ways, for example, as 18041060865529 + 3088950366681 = 4247477^2 + 1757541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11435139 + ... + 13153798.

Almost surely, 2^{21130011232210} is an apocalyptic number.

21130011232210 is a deficient number, since it is larger than the sum of its proper divisors (16904453133446).

21130011232210 is a wasteful number, since it uses less digits than its factorization.

21130011232210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24674877.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21130011232210 its reverse (1223211003112), we get a palindrome (22353222235322).

The spelling of 21130011232210 in words is "twenty-one trillion, one hundred thirty billion, eleven million, two hundred thirty-two thousand, two hundred ten".