1012210012100 has 72 divisors (see below), whose sum is σ = 2552828066880. Its totient is φ = 341161326720.

The previous prime is 1012210012087. The next prime is 1012210012117. The reversal of 1012210012100 is 12100122101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12213059 + ... + 12295658.

Almost surely, 2^{1012210012100} is an apocalyptic number.

1012210012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012210012100 is an abundant number, since it is smaller than the sum of its proper divisors (1540618054780).

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

1012210012100 is a wasteful number, since it uses less digits than its factorization.

1012210012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24508797 (or 24508790 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1012210012100 its reverse (12100122101), we get a palindrome (1024310134201).

The spelling of 1012210012100 in words is "one trillion, twelve billion, two hundred ten million, twelve thousand, one hundred".