1000112021100 has 108 divisors (see below), whose sum is σ = 3235918096320. Its totient is φ = 258093417600.

The previous prime is 1000112021081. The next prime is 1000112021177. The reversal of 1000112021100 is 11202110001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17895255 + ... + 17951054.

Almost surely, 2^{1000112021100} is an apocalyptic number.

1000112021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000112021100 is an abundant number, since it is smaller than the sum of its proper divisors (2235806075220).

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

1000112021100 is a wasteful number, since it uses less digits than its factorization.

1000112021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35846360 (or 35846350 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1000112021100 its reverse (11202110001), we get a palindrome (1011314131101).

The spelling of 1000112021100 in words is "one trillion, one hundred twelve million, twenty-one thousand, one hundred".