201121002202100 has 36 divisors (see below), whose sum is σ = 436511654174400. Its totient is φ = 80433824033760.

The previous prime is 201121002202063. The next prime is 201121002202129. The reversal of 201121002202100 is 1202200121102.

It is a super-2 number, since 2×201121002202100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181655930 + ... + 182759729.

Almost surely, 2^{201121002202100} is an apocalyptic number.

201121002202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121002202100 is an abundant number, since it is smaller than the sum of its proper divisors (235390651972300).

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

201121002202100 is a wasteful number, since it uses less digits than its factorization.

201121002202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364421192 (or 364421185 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201121002202100 its reverse (1202200121102), we get a palindrome (202323202323202).

It can be divided in two parts, 201121002 and 202100, that added together give a palindrome (201323102).

The spelling of 201121002202100 in words is "two hundred one trillion, one hundred twenty-one billion, two million, two hundred two thousand, one hundred".