222102222100 has 72 divisors (see below), whose sum is σ = 528681849696. Its totient is φ = 80318160000.

The previous prime is 222102222061. The next prime is 222102222101. The reversal of 222102222100 is 1222201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102222101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358666 + ... + 756865.

It is an arithmetic number, because the mean of its divisors is an integer number (7342803468).

Almost surely, 2^222102222100 is an apocalyptic number.

222102222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102222100 is an abundant number, since it is smaller than the sum of its proper divisors (306579627596).

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

222102222100 is a wasteful number, since it uses less digits than its factorization.

222102222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115737 (or 1115730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222102222100 its reverse (1222201222), we get a palindrome (223324423322).

The spelling of 222102222100 in words is "two hundred twenty-two billion, one hundred two million, two hundred twenty-two thousand, one hundred".