112100212121100 has 144 divisors (see below), whose sum is σ = 383460036153600. Its totient is φ = 24739357144320.

The previous prime is 112100212121087. The next prime is 112100212121119. The reversal of 112100212121100 is 1121212001211.

It is a happy number.

It is a super-2 number, since 2×112100212121100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112100212121100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 920302090 + ... + 920423889.

Almost surely, 2^{112100212121100} is an apocalyptic number.

112100212121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112100212121100 is an abundant number, since it is smaller than the sum of its proper divisors (271359824032500).

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

112100212121100 is a wasteful number, since it uses less digits than its factorization.

112100212121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840726032 (or 1840726025 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112100212121100 its reverse (1121212001211), we get a palindrome (113221424122311).

The spelling of 112100212121100 in words is "one hundred twelve trillion, one hundred billion, two hundred twelve million, one hundred twenty-one thousand, one hundred".