202020121211011 has 16 divisors (see below), whose sum is σ = 210652272230400. Its totient is φ = 193521112092000.

The previous prime is 202020121211003. The next prime is 202020121211033. The reversal of 202020121211011 is 110112121020202.

It is a cyclic number.

It is not a de Polignac number, because 202020121211011 - 2³ = 202020121211003 is a prime.

It is a super-2 number, since 2×202020121211011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202020121211081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5264850 + ... + 20778808.

It is an arithmetic number, because the mean of its divisors is an integer number (13165767014400).

Almost surely, 2^{202020121211011} is an apocalyptic number.

202020121211011 is a deficient number, since it is larger than the sum of its proper divisors (8632151019389).

202020121211011 is a wasteful number, since it uses less digits than its factorization.

202020121211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15518250.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202020121211011 its reverse (110112121020202), we get a palindrome (312132242231213).

The spelling of 202020121211011 in words is "two hundred two trillion, twenty billion, one hundred twenty-one million, two hundred eleven thousand, eleven".