22221321310210 has 32 divisors (see below), whose sum is σ = 44562990212352. Its totient is φ = 7908555358080.

The previous prime is 22221321310187. The next prime is 22221321310241. The reversal of 22221321310210 is 1201312312222.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 2149058787 + ... + 2149069126.

It is an arithmetic number, because the mean of its divisors is an integer number (1392593444136).

Almost surely, 2^{22221321310210} is an apocalyptic number.

22221321310210 is an abundant number, since it is smaller than the sum of its proper divisors (22341668902142).

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

22221321310210 is a wasteful number, since it uses less digits than its factorization.

22221321310210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298127978.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 22221321310210 its reverse (1201312312222), we get a palindrome (23422633622432).

The spelling of 22221321310210 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred twenty-one million, three hundred ten thousand, two hundred ten".