201021010111100 has 36 divisors (see below), whose sum is σ = 439650360409344. Its totient is φ = 79775266999680.

The previous prime is 201021010111069. The next prime is 201021010111177. The reversal of 201021010111100 is 1111010120102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7914200297 + ... + 7914225696.

Almost surely, 2^{201021010111100} is an apocalyptic number.

201021010111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021010111100 is an abundant number, since it is smaller than the sum of its proper divisors (238629350298244).

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

201021010111100 is a wasteful number, since it uses less digits than its factorization.

201021010111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828426134 (or 15828426127 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201021010111100 its reverse (1111010120102), we get a palindrome (202132020231202).

The spelling of 201021010111100 in words is "two hundred one trillion, twenty-one billion, ten million, one hundred eleven thousand, one hundred".