202020120002111 has 4 divisors (see below), whose sum is σ = 202749434515032. Its totient is φ = 201290805489192.

The previous prime is 202020120002023. The next prime is 202020120002191. The reversal of 202020120002111 is 111200021020202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202020120002111 - 2¹⁸ = 202020119739967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020120002191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364657256045 + ... + 364657256598.

It is an arithmetic number, because the mean of its divisors is an integer number (50687358628758).

Almost surely, 2^{202020120002111} is an apocalyptic number.

202020120002111 is a deficient number, since it is larger than the sum of its proper divisors (729314512921).

202020120002111 is an equidigital number, since it uses as much as digits as its factorization.

202020120002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729314512920.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202020120002111 its reverse (111200021020202), we get a palindrome (313220141022313).

The spelling of 202020120002111 in words is "two hundred two trillion, twenty billion, one hundred twenty million, two thousand, one hundred eleven".