202011111201121 has 2 divisors, whose sum is σ = 202011111201122. Its totient is φ = 202011111201120.

The previous prime is 202011111201089. The next prime is 202011111201127. The reversal of 202011111201121 is 121102111110202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189494799335521 + 12516311865600 = 13765711^2 + 3537840^2 .

It is a cyclic number.

It is not a de Polignac number, because 202011111201121 - 2⁵ = 202011111201089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202011111201095 and 202011111201104.

It is not a weakly prime, because it can be changed into another prime (202011111201127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005555600560 + 101005555600561.

It is an arithmetic number, because the mean of its divisors is an integer number (101005555600561).

Almost surely, 2^{202011111201121} is an apocalyptic number.

It is an amenable number.

202011111201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

202011111201121 is an equidigital number, since it uses as much as digits as its factorization.

202011111201121 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 16.

Adding to 202011111201121 its reverse (121102111110202), we get a palindrome (323113222311323).

The spelling of 202011111201121 in words is "two hundred two trillion, eleven billion, one hundred eleven million, two hundred one thousand, one hundred twenty-one".