202020012102111 has 24 divisors (see below), whose sum is σ = 313337927750400. Its totient is φ = 115439724659952.

The previous prime is 202020012102079. The next prime is 202020012102113. The reversal of 202020012102111 is 111201210020202.

It is not a de Polignac number, because 202020012102111 - 2⁵ = 202020012102079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020012102113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68616490 + ... + 71500088.

It is an arithmetic number, because the mean of its divisors is an integer number (13055746989600).

Almost surely, 2^{202020012102111} is an apocalyptic number.

202020012102111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202020012102111 is a deficient number, since it is larger than the sum of its proper divisors (111317915648289).

202020012102111 is a wasteful number, since it uses less digits than its factorization.

202020012102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360203 (or 3360196 counting only the distinct ones).

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

Adding to 202020012102111 its reverse (111201210020202), we get a palindrome (313221222122313).

The spelling of 202020012102111 in words is "two hundred two trillion, twenty billion, twelve million, one hundred two thousand, one hundred eleven".