222020102100 has 72 divisors (see below), whose sum is σ = 659739767008. Its totient is φ = 57605212800.

The previous prime is 222020102047. The next prime is 222020102111. The reversal of 222020102100 is 1201020222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9989806 + ... + 10012005.

Almost surely, 2^222020102100 is an apocalyptic number.

222020102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020102100 is an abundant number, since it is smaller than the sum of its proper divisors (437719664908).

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

222020102100 is a wasteful number, since it uses less digits than its factorization.

222020102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20001865 (or 20001858 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222020102100 its reverse (1201020222), we get a palindrome (223221122322).

The spelling of 222020102100 in words is "two hundred twenty-two billion, twenty million, one hundred two thousand, one hundred".