22520230409 has 2 divisors, whose sum is σ = 22520230410. Its totient is φ = 22520230408.

The previous prime is 22520230399. The next prime is 22520230487. The reversal of 22520230409 is 90403202522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12090102025 + 10430128384 = 109955^2 + 102128^2 .

It is a cyclic number.

It is not a de Polignac number, because 22520230409 - 2¹⁶ = 22520164873 is a prime.

It is not a weakly prime, because it can be changed into another prime (22520230309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260115204 + 11260115205.

It is an arithmetic number, because the mean of its divisors is an integer number (11260115205).

Almost surely, 2^22520230409 is an apocalyptic number.

It is an amenable number.

22520230409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22520230409 is an equidigital number, since it uses as much as digits as its factorization.

22520230409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 22520230409 in words is "twenty-two billion, five hundred twenty million, two hundred thirty thousand, four hundred nine".