20221504013 has 2 divisors, whose sum is σ = 20221504014. Its totient is φ = 20221504012.

The previous prime is 20221503971. The next prime is 20221504027. The reversal of 20221504013 is 31040512202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18042668329 + 2178835684 = 134323^2 + 46678^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221504013 - 2¹⁸ = 20221241869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221504313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110752006 + 10110752007.

It is an arithmetic number, because the mean of its divisors is an integer number (10110752007).

Almost surely, 2^20221504013 is an apocalyptic number.

It is an amenable number.

20221504013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221504013 is an equidigital number, since it uses as much as digits as its factorization.

20221504013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The spelling of 20221504013 in words is "twenty billion, two hundred twenty-one million, five hundred four thousand, thirteen".