222202001100 has 72 divisors (see below), whose sum is σ = 644369313280. Its totient is φ = 59118857280.

The previous prime is 222202001089. The next prime is 222202001207. The reversal of 222202001100 is 1100202222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711892 + ... + 975291.

Almost surely, 2^222202001100 is an apocalyptic number.

222202001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202001100 is an abundant number, since it is smaller than the sum of its proper divisors (422167312180).

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

222202001100 is a wasteful number, since it uses less digits than its factorization.

222202001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687639 (or 1687632 counting only the distinct ones).

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

Adding to 222202001100 its reverse (1100202222), we get a palindrome (223302203322).

The spelling of 222202001100 in words is "two hundred twenty-two billion, two hundred two million, one thousand, one hundred".