21222200102130 has 128 divisors (see below), whose sum is σ = 59927371983360. Its totient is φ = 5325834700800.

The previous prime is 21222200102063. The next prime is 21222200102179. The reversal of 21222200102130 is 3120100222212.

21222200102130 is a `hidden beast` number, since 21 + 222 + 200 + 10 + 213 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47776555 + ... + 48218705.

It is an arithmetic number, because the mean of its divisors is an integer number (468182593620).

Almost surely, 2^{21222200102130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21222200102130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29963685991680).

21222200102130 is an abundant number, since it is smaller than the sum of its proper divisors (38705171881230).

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

21222200102130 is a wasteful number, since it uses less digits than its factorization.

21222200102130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452641 (or 452635 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21222200102130 its reverse (3120100222212), we get a palindrome (24342300324342).

The spelling of 21222200102130 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, one hundred two thousand, one hundred thirty".