21211033130 has 32 divisors (see below), whose sum is σ = 43639416576. Its totient is φ = 7271472384.

The previous prime is 21211033079. The next prime is 21211033133. The reversal of 21211033130 is 3133011212.

It is a junction number, because it is equal to n+sod(n) for n = 21211033099 and 21211033108.

It is not an unprimeable number, because it can be changed into a prime (21211033133) 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, 862667 + ... + 886913.

It is an arithmetic number, because the mean of its divisors is an integer number (1363731768).

Almost surely, 2^21211033130 is an apocalyptic number.

21211033130 is an abundant number, since it is smaller than the sum of its proper divisors (22428383446).

21211033130 is a wasteful number, since it uses less digits than its factorization.

21211033130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36758.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21211033130 its reverse (3133011212), we get a palindrome (24344044342).

The spelling of 21211033130 in words is "twenty-one billion, two hundred eleven million, thirty-three thousand, one hundred thirty".