222131202100 has 144 divisors (see below), whose sum is σ = 538081185600. Its totient is φ = 79100651520.

The previous prime is 222131202091. The next prime is 222131202109. The reversal of 222131202100 is 1202131222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222131202091) and next prime (222131202109).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131202109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22055866 + ... + 22065934.

It is an arithmetic number, because the mean of its divisors is an integer number (3736674900).

Almost surely, 2^222131202100 is an apocalyptic number.

222131202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222131202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269040592800).

222131202100 is an abundant number, since it is smaller than the sum of its proper divisors (315949983500).

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

222131202100 is a wasteful number, since it uses less digits than its factorization.

222131202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802 (or 10795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222131202100 its reverse (1202131222), we get a palindrome (223333333322).

The spelling of 222131202100 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred two thousand, one hundred".