222112020100 has 36 divisors (see below), whose sum is σ = 482279677264. Its totient is φ = 88790136480.

The previous prime is 222112020083. The next prime is 222112020101. The reversal of 222112020100 is 1020211222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222112020101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519882 + ... + 845281.

Almost surely, 2^222112020100 is an apocalyptic number.

222112020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112020100 is an abundant number, since it is smaller than the sum of its proper divisors (260167657164).

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

222112020100 is a wasteful number, since it uses less digits than its factorization.

222112020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366804 (or 1366797 counting only the distinct ones).

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

Adding to 222112020100 its reverse (1020211222), we get a palindrome (223132231322).

The spelling of 222112020100 in words is "two hundred twenty-two billion, one hundred twelve million, twenty thousand, one hundred".