202110012121 has 8 divisors (see below), whose sum is σ = 215310604320. Its totient is φ = 189165742272.

The previous prime is 202110012109. The next prime is 202110012133. The reversal of 202110012121 is 121210011202.

202110012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (202110012109) and next prime (202110012133).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202110012121 - 2¹³ = 202110003929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202110012161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64078960 + ... + 64082113.

It is an arithmetic number, because the mean of its divisors is an integer number (26913825540).

Almost surely, 2^202110012121 is an apocalyptic number.

It is an amenable number.

202110012121 is a deficient number, since it is larger than the sum of its proper divisors (13200592199).

202110012121 is a wasteful number, since it uses less digits than its factorization.

202110012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128161175.

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

Adding to 202110012121 its reverse (121210011202), we get a palindrome (323320023323).

The spelling of 202110012121 in words is "two hundred two billion, one hundred ten million, twelve thousand, one hundred twenty-one".