13122222309 has 36 divisors (see below), whose sum is σ = 22263512544. Its totient is φ = 7295704992.

The previous prime is 13122222287. The next prime is 13122222319. The reversal of 13122222309 is 90322222131.

13122222309 is a `hidden beast` number, since 1 + 312 + 22 + 22 + 309 = 666.

It is not a de Polignac number, because 13122222309 - 2¹⁹ = 13121698021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122222319) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10174 + ... + 162320.

It is an arithmetic number, because the mean of its divisors is an integer number (618430904).

Almost surely, 2^13122222309 is an apocalyptic number.

It is an amenable number.

13122222309 is a deficient number, since it is larger than the sum of its proper divisors (9141290235).

13122222309 is a wasteful number, since it uses less digits than its factorization.

13122222309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152234 (or 152194 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 13122222309 in words is "thirteen billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred nine".