202022222117 has 2 divisors, whose sum is σ = 202022222118. Its totient is φ = 202022222116.

The previous prime is 202022221997. The next prime is 202022222123. The reversal of 202022222117 is 711222220202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146045501281 + 55976720836 = 382159^2 + 236594^2 .

It is a cyclic number.

It is not a de Polignac number, because 202022222117 - 2¹⁸ = 202021959973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202022222092 and 202022222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202022222147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101011111058 + 101011111059.

It is an arithmetic number, because the mean of its divisors is an integer number (101011111059).

Almost surely, 2^202022222117 is an apocalyptic number.

It is an amenable number.

202022222117 is a deficient number, since it is larger than the sum of its proper divisors (1).

202022222117 is an equidigital number, since it uses as much as digits as its factorization.

202022222117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 202022222117 its reverse (711222220202), we get a palindrome (913244442319).

The spelling of 202022222117 in words is "two hundred two billion, twenty-two million, two hundred twenty-two thousand, one hundred seventeen".