201111201202100 has 72 divisors (see below), whose sum is σ = 498765412178880. Its totient is φ = 68951080062720.

The previous prime is 201111201202069. The next prime is 201111201202123. The reversal of 201111201202100 is 1202102111102.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 23 ways as a sum of consecutive naturals, for example, 33838496 + ... + 39335304.

Almost surely, 2^{201111201202100} is an apocalyptic number.

201111201202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201111201202100 is an abundant number, since it is smaller than the sum of its proper divisors (297654210976780).

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

201111201202100 is a wasteful number, since it uses less digits than its factorization.

201111201202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549097 (or 5549090 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111201202100 its reverse (1202102111102), we get a palindrome (202313303313202).

The spelling of 201111201202100 in words is "two hundred one trillion, one hundred eleven billion, two hundred one million, two hundred two thousand, one hundred".