202020020120111 has 32 divisors (see below), whose sum is σ = 216510673075200. Its totient is φ = 188070381100800.

The previous prime is 202020020120101. The next prime is 202020020120131. The reversal of 202020020120111 is 111021020020202.

It is a cyclic number.

It is not a de Polignac number, because 202020020120111 - 2²² = 202020015925807 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 (202020020120101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4013963195 + ... + 4014013523.

It is an arithmetic number, because the mean of its divisors is an integer number (6765958533600).

Almost surely, 2^{202020020120111} is an apocalyptic number.

202020020120111 is a deficient number, since it is larger than the sum of its proper divisors (14490652955089).

202020020120111 is a wasteful number, since it uses less digits than its factorization.

202020020120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79799.

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

Adding to 202020020120111 its reverse (111021020020202), we get a palindrome (313041040140313).

Subtracting from 202020020120111 its reverse (111021020020202), we obtain a palindrome (90999000099909).

The spelling of 202020020120111 in words is "two hundred two trillion, twenty billion, twenty million, one hundred twenty thousand, one hundred eleven".