202022022121 has 2 divisors, whose sum is σ = 202022022122. Its totient is φ = 202022022120.

The previous prime is 202022022109. The next prime is 202022022131. The reversal of 202022022121 is 121220220202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181424031721 + 20597990400 = 425939^2 + 143520^2 .

It is a cyclic number.

It is not a de Polignac number, because 202022022121 - 2⁵ = 202022022089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202022022095 and 202022022104.

It is not a weakly prime, because it can be changed into another prime (202022022101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101011011060 + 101011011061.

It is an arithmetic number, because the mean of its divisors is an integer number (101011011061).

Almost surely, 2^202022022121 is an apocalyptic number.

It is an amenable number.

202022022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

202022022121 is an equidigital number, since it uses as much as digits as its factorization.

202022022121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202022022121 its reverse (121220220202), we get a palindrome (323242242323).

The spelling of 202022022121 in words is "two hundred two billion, twenty-two million, twenty-two thousand, one hundred twenty-one".