201120100200121 has 4 divisors (see below), whose sum is σ = 201120137016912. Its totient is φ = 201120063383332.

The previous prime is 201120100200031. The next prime is 201120100200143. The reversal of 201120100200121 is 121002001021102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201120100200121 - 2¹⁵ = 201120100167353 is a prime.

It is a super-2 number, since 2×201120100200121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201120100207121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8400775 + ... + 21744268.

It is an arithmetic number, because the mean of its divisors is an integer number (50280034254228).

Almost surely, 2^{201120100200121} is an apocalyptic number.

It is an amenable number.

201120100200121 is a deficient number, since it is larger than the sum of its proper divisors (36816791).

201120100200121 is an equidigital number, since it uses as much as digits as its factorization.

201120100200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36816790.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201120100200121 its reverse (121002001021102), we get a palindrome (322122101221223).

The spelling of 201120100200121 in words is "two hundred one trillion, one hundred twenty billion, one hundred million, two hundred thousand, one hundred twenty-one".