21200022130 has 32 divisors (see below), whose sum is σ = 43944405120. Its totient is φ = 7213090560.

The previous prime is 21200022097. The next prime is 21200022143. The reversal of 21200022130 is 3122000212.

It is a self number, because there is not a number n which added to its sum of digits gives 21200022130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146775 + ... + 1165114.

It is an arithmetic number, because the mean of its divisors is an integer number (1373262660).

Almost surely, 2^21200022130 is an apocalyptic number.

21200022130 is an abundant number, since it is smaller than the sum of its proper divisors (22744382990).

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

21200022130 is a wasteful number, since it uses less digits than its factorization.

21200022130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312034.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21200022130 its reverse (3122000212), we get a palindrome (24322022342).

The spelling of 21200022130 in words is "twenty-one billion, two hundred million, twenty-two thousand, one hundred thirty".