202110121011121 has 16 divisors (see below), whose sum is σ = 225339812429760. Its totient is φ = 180147437061120.

The previous prime is 202110121011119. The next prime is 202110121011199. The reversal of 202110121011121 is 121110121011202.

It is a cyclic number.

It is not a de Polignac number, because 202110121011121 - 2¹ = 202110121011119 is a prime.

It is a super-2 number, since 2×202110121011121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202110121011095 and 202110121011104.

It is not an unprimeable number, because it can be changed into a prime (202110121011521) 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, 107060115 + ... + 108931576.

It is an arithmetic number, because the mean of its divisors is an integer number (14083738276860).

Almost surely, 2^{202110121011121} is an apocalyptic number.

It is an amenable number.

202110121011121 is a deficient number, since it is larger than the sum of its proper divisors (23229691418639).

202110121011121 is a wasteful number, since it uses less digits than its factorization.

202110121011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215994624.

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

Adding to 202110121011121 its reverse (121110121011202), we get a palindrome (323220242022323).

The spelling of 202110121011121 in words is "two hundred two trillion, one hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred twenty-one".