12100201122021 has 16 divisors (see below), whose sum is σ = 16336728436224. Its totient is φ = 7965341399664.

The previous prime is 12100201122007. The next prime is 12100201122029. The reversal of 12100201122021 is 12022110200121.

It is not a de Polignac number, because 12100201122021 - 2⁹ = 12100201121509 is a prime.

It is a super-2 number, since 2×12100201122021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100201122029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12549361 + ... + 13479126.

It is an arithmetic number, because the mean of its divisors is an integer number (1021045527264).

Almost surely, 2^{12100201122021} is an apocalyptic number.

It is an amenable number.

12100201122021 is a deficient number, since it is larger than the sum of its proper divisors (4236527314203).

12100201122021 is a wasteful number, since it uses less digits than its factorization.

12100201122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26030440.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12100201122021 its reverse (12022110200121), we get a palindrome (24122311322142).

The spelling of 12100201122021 in words is "twelve trillion, one hundred billion, two hundred one million, one hundred twenty-two thousand, twenty-one".