22012231009 has 2 divisors, whose sum is σ = 22012231010. Its totient is φ = 22012231008.

The previous prime is 22012230997. The next prime is 22012231013. The reversal of 22012231009 is 90013221022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13449504784 + 8562726225 = 115972^2 + 92535^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012231009 - 2¹⁷ = 22012099937 is a prime.

It is not a weakly prime, because it can be changed into another prime (22012231909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006115504 + 11006115505.

It is an arithmetic number, because the mean of its divisors is an integer number (11006115505).

Almost surely, 2^22012231009 is an apocalyptic number.

It is an amenable number.

22012231009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012231009 is an equidigital number, since it uses as much as digits as its factorization.

22012231009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 22012231009 in words is "twenty-two billion, twelve million, two hundred thirty-one thousand, nine".