222122122102100 has 36 divisors (see below), whose sum is σ = 525823641778848. Its totient is φ = 80771680764000.

The previous prime is 222122122102081. The next prime is 222122122102141. The reversal of 222122122102100 is 1201221221222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100964599856 + ... + 100964602055.

Almost surely, 2^{222122122102100} is an apocalyptic number.

222122122102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122122102100 is an abundant number, since it is smaller than the sum of its proper divisors (303701519676748).

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

222122122102100 is a wasteful number, since it uses less digits than its factorization.

222122122102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201929201936 (or 201929201929 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222122122102100 its reverse (1201221221222), we get a palindrome (223323343323322).

The spelling of 222122122102100 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred two thousand, one hundred".