222112120002100 has 36 divisors (see below), whose sum is σ = 482068653728704. Its totient is φ = 88829114669280.

The previous prime is 222112120002079. The next prime is 222112120002119. The reversal of 222112120002100 is 1200021211222.

It is a happy number.

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, 196099122 + ... + 197228521.

Almost surely, 2^{222112120002100} is an apocalyptic number.

222112120002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112120002100 is an abundant number, since it is smaller than the sum of its proper divisors (259956533726604).

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

222112120002100 is a wasteful number, since it uses less digits than its factorization.

222112120002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393333304 (or 393333297 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222112120002100 its reverse (1200021211222), we get a palindrome (223312141213322).

The spelling of 222112120002100 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, two thousand, one hundred".