15222232009 has 2 divisors, whose sum is σ = 15222232010. Its totient is φ = 15222232008.

The previous prime is 15222232001. The next prime is 15222232043. The reversal of 15222232009 is 90023222251.

15222232009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14379607225 + 842624784 = 119915^2 + 29028^2 .

It is a cyclic number.

It is not a de Polignac number, because 15222232009 - 2³ = 15222232001 is a prime.

It is not a weakly prime, because it can be changed into another prime (15222232001) 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, 7611116004 + 7611116005.

It is an arithmetic number, because the mean of its divisors is an integer number (7611116005).

Almost surely, 2^15222232009 is an apocalyptic number.

It is an amenable number.

15222232009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15222232009 is an equidigital number, since it uses as much as digits as its factorization.

15222232009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 15222232009 in words is "fifteen billion, two hundred twenty-two million, two hundred thirty-two thousand, nine".