202020100102111 has 2 divisors, whose sum is σ = 202020100102112. Its totient is φ = 202020100102110.

The previous prime is 202020100102049. The next prime is 202020100102123. The reversal of 202020100102111 is 111201001020202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202020100102111 is a prime.

It is a super-3 number, since 3×202020100102111³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202020100102091 and 202020100102100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202020100102511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010050051055 + 101010050051056.

It is an arithmetic number, because the mean of its divisors is an integer number (101010050051056).

Almost surely, 2^{202020100102111} is an apocalyptic number.

202020100102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020100102111 is an equidigital number, since it uses as much as digits as its factorization.

202020100102111 is an evil number, because the sum of its binary digits is even.

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

Adding to 202020100102111 its reverse (111201001020202), we get a palindrome (313221101122313).

The spelling of 202020100102111 in words is "two hundred two trillion, twenty billion, one hundred million, one hundred two thousand, one hundred eleven".