20122022321 has 2 divisors, whose sum is σ = 20122022322. Its totient is φ = 20122022320.

The previous prime is 20122022311. The next prime is 20122022377. The reversal of 20122022321 is 12322022102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19109191696 + 1012830625 = 138236^2 + 31825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122022321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122022321.

It is not a weakly prime, because it can be changed into another prime (20122022311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061011160 + 10061011161.

It is an arithmetic number, because the mean of its divisors is an integer number (10061011161).

Almost surely, 2^20122022321 is an apocalyptic number.

It is an amenable number.

20122022321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122022321 is an equidigital number, since it uses as much as digits as its factorization.

20122022321 is an evil number, because the sum of its binary digits is even.

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

Adding to 20122022321 its reverse (12322022102), we get a palindrome (32444044423).

The spelling of 20122022321 in words is "twenty billion, one hundred twenty-two million, twenty-two thousand, three hundred twenty-one".