201122212211100 has 54 divisors (see below), whose sum is σ = 630406400722280. Its totient is φ = 53632589922720.

The previous prime is 201122212211051. The next prime is 201122212211183. The reversal of 201122212211100 is 1112212221102.

201122212211100 is a `hidden beast` number, since 2 + 0 + 112 + 221 + 221 + 110 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111734561440 + ... + 111734563239.

Almost surely, 2^{201122212211100} is an apocalyptic number.

201122212211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201122212211100 is an abundant number, since it is smaller than the sum of its proper divisors (429284188511180).

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

201122212211100 is a wasteful number, since it uses less digits than its factorization.

201122212211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223469124699 (or 223469124689 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201122212211100 its reverse (1112212221102), we get a palindrome (202234424432202).

The spelling of 201122212211100 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, one hundred".