222102100120 has 32 divisors (see below), whose sum is σ = 499748220720. Its totient is φ = 88837552000.

The previous prime is 222102100109. The next prime is 222102100141. The reversal of 222102100120 is 21001201222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222102100120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193370 + ... + 1366870.

Almost surely, 2^222102100120 is an apocalyptic number.

222102100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102100120 is an abundant number, since it is smaller than the sum of its proper divisors (277646120600).

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

222102100120 is a wasteful number, since it uses less digits than its factorization.

222102100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205515 (or 205511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222102100120 its reverse (21001201222), we get a palindrome (243103301342).

The spelling of 222102100120 in words is "two hundred twenty-two billion, one hundred two million, one hundred thousand, one hundred twenty".