1012201202100 has 72 divisors (see below), whose sum is σ = 3194875077408. Its totient is φ = 245382108800.

The previous prime is 1012201202071. The next prime is 1012201202113. The reversal of 1012201202100 is 12021022101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 153360519 + ... + 153367118.

It is an arithmetic number, because the mean of its divisors is an integer number (44373264964).

Almost surely, 2^{1012201202100} is an apocalyptic number.

1012201202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012201202100 is an abundant number, since it is smaller than the sum of its proper divisors (2182673875308).

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

1012201202100 is a wasteful number, since it uses less digits than its factorization.

1012201202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306727665 (or 306727658 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1012201202100 its reverse (12021022101), we get a palindrome (1024222224201).

The spelling of 1012201202100 in words is "one trillion, twelve billion, two hundred one million, two hundred two thousand, one hundred".