202110121101 has 48 divisors (see below), whose sum is σ = 331994557440. Its totient is φ = 108672399360.

The previous prime is 202110121091. The next prime is 202110121123. The reversal of 202110121101 is 101121011202.

It is not a de Polignac number, because 202110121101 - 2⁵ = 202110121069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202110121141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16189780 + ... + 16202258.

It is an arithmetic number, because the mean of its divisors is an integer number (6916553280).

Almost surely, 2^202110121101 is an apocalyptic number.

202110121101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202110121101 is a deficient number, since it is larger than the sum of its proper divisors (129884436339).

202110121101 is a wasteful number, since it uses less digits than its factorization.

202110121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18994 (or 18987 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 202110121101 its reverse (101121011202), we get a palindrome (303231132303).

The spelling of 202110121101 in words is "two hundred two billion, one hundred ten million, one hundred twenty-one thousand, one hundred one".