20202000211121 has 2 divisors, whose sum is σ = 20202000211122. Its totient is φ = 20202000211120.

The previous prime is 20202000211091. The next prime is 20202000211181. The reversal of 20202000211121 is 12111200020202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14578765786225 + 5623234424896 = 3818215^2 + 2371336^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202000211121 - 2²⁶ = 20201933102257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202000211096 and 20202000211105.

It is not a weakly prime, because it can be changed into another prime (20202000211181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101000105560 + 10101000105561.

It is an arithmetic number, because the mean of its divisors is an integer number (10101000105561).

Almost surely, 2^{20202000211121} is an apocalyptic number.

It is an amenable number.

20202000211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202000211121 is an equidigital number, since it uses as much as digits as its factorization.

20202000211121 is an evil number, because the sum of its binary digits is even.

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

Adding to 20202000211121 its reverse (12111200020202), we get a palindrome (32313200231323).

The spelling of 20202000211121 in words is "twenty trillion, two hundred two billion, two hundred eleven thousand, one hundred twenty-one".