22102321361 has 2 divisors, whose sum is σ = 22102321362. Its totient is φ = 22102321360.

The previous prime is 22102321327. The next prime is 22102321411. The reversal of 22102321361 is 16312320122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15711118336 + 6391203025 = 125344^2 + 79945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22102321361 is a prime.

It is not a weakly prime, because it can be changed into another prime (22102321561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051160680 + 11051160681.

It is an arithmetic number, because the mean of its divisors is an integer number (11051160681).

Almost surely, 2^22102321361 is an apocalyptic number.

It is an amenable number.

22102321361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102321361 is an equidigital number, since it uses as much as digits as its factorization.

22102321361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22102321361 its reverse (16312320122), we get a palindrome (38414641483).

The spelling of 22102321361 in words is "twenty-two billion, one hundred two million, three hundred twenty-one thousand, three hundred sixty-one".