22021321322939 has 2 divisors, whose sum is σ = 22021321322940. Its totient is φ = 22021321322938.

The previous prime is 22021321322911. The next prime is 22021321323031. The reversal of 22021321322939 is 93922312312022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021321322939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021321322896 and 22021321322905.

It is not a weakly prime, because it can be changed into another prime (22021321322839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010660661469 + 11010660661470.

It is an arithmetic number, because the mean of its divisors is an integer number (11010660661470).

Almost surely, 2^{22021321322939} is an apocalyptic number.

22021321322939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021321322939 is an equidigital number, since it uses as much as digits as its factorization.

22021321322939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 22021321322939 in words is "twenty-two trillion, twenty-one billion, three hundred twenty-one million, three hundred twenty-two thousand, nine hundred thirty-nine".