202110200012121 has 48 divisors (see below), whose sum is σ = 283411899122688. Its totient is φ = 127874488250080.

The previous prime is 202110200012099. The next prime is 202110200012143. The reversal of 202110200012121 is 121210002011202.

It is an interprime number because it is at equal distance from previous prime (202110200012099) and next prime (202110200012143).

It is not a de Polignac number, because 202110200012121 - 2¹¹ = 202110200010073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202110200012121.

It is not an unprimeable number, because it can be changed into a prime (202110200012221) 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, 8268620926 + ... + 8268645368.

It is an arithmetic number, because the mean of its divisors is an integer number (5904414565056).

Almost surely, 2^{202110200012121} is an apocalyptic number.

It is an amenable number.

202110200012121 is a deficient number, since it is larger than the sum of its proper divisors (81301699110567).

202110200012121 is a wasteful number, since it uses less digits than its factorization.

202110200012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31714 (or 31583 counting only the distinct ones).

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

Adding to 202110200012121 its reverse (121210002011202), we get a palindrome (323320202023323).

The spelling of 202110200012121 in words is "two hundred two trillion, one hundred ten billion, two hundred million, twelve thousand, one hundred twenty-one".