22113213210 has 96 divisors (see below), whose sum is σ = 62748354240. Its totient is φ = 5358451200.

The previous prime is 22113213209. The next prime is 22113213257. The reversal of 22113213210 is 1231231122.

22113213210 is a `hidden beast` number, since 2 + 21 + 1 + 321 + 321 + 0 = 666.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3720421 + ... + 3726359.

It is an arithmetic number, because the mean of its divisors is an integer number (653628690).

Almost surely, 2^22113213210 is an apocalyptic number.

22113213210 is an abundant number, since it is smaller than the sum of its proper divisors (40635141030).

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

22113213210 is a wasteful number, since it uses less digits than its factorization.

22113213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724 (or 9721 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22113213210 its reverse (1231231122), we get a palindrome (23344444332).

The spelling of 22113213210 in words is "twenty-two billion, one hundred thirteen million, two hundred thirteen thousand, two hundred ten".