22302202121 has 2 divisors, whose sum is σ = 22302202122. Its totient is φ = 22302202120.

The previous prime is 22302202051. The next prime is 22302202123. The reversal of 22302202121 is 12120220322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21001806400 + 1300395721 = 144920^2 + 36061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22302202121 is a prime.

Together with 22302202123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22302202121.

It is not a weakly prime, because it can be changed into another prime (22302202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151101060 + 11151101061.

It is an arithmetic number, because the mean of its divisors is an integer number (11151101061).

Almost surely, 2^22302202121 is an apocalyptic number.

It is an amenable number.

22302202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22302202121 is an equidigital number, since it uses as much as digits as its factorization.

22302202121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22302202121 its reverse (12120220322), we get a palindrome (34422422443).

The spelling of 22302202121 in words is "twenty-two billion, three hundred two million, two hundred two thousand, one hundred twenty-one".