22222020210 has 64 divisors (see below), whose sum is σ = 57801364992. Its totient is φ = 5435179776.

The previous prime is 22222020187. The next prime is 22222020221. The reversal of 22222020210 is 1202022222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22222020210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120234 + ... + 242693.

It is an arithmetic number, because the mean of its divisors is an integer number (903146328).

Almost surely, 2^22222020210 is an apocalyptic number.

22222020210 is an abundant number, since it is smaller than the sum of its proper divisors (35579344782).

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

22222020210 is a wasteful number, since it uses less digits than its factorization.

22222020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363107.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22222020210 its reverse (1202022222), we get a palindrome (23424042432).

The spelling of 22222020210 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, two hundred ten".