12199335809 has 2 divisors, whose sum is σ = 12199335810. Its totient is φ = 12199335808.

The previous prime is 12199335793. The next prime is 12199335829. The reversal of 12199335809 is 90853399121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11858121025 + 341214784 = 108895^2 + 18472^2 .

It is a cyclic number.

It is not a de Polignac number, because 12199335809 - 2⁴ = 12199335793 is a prime.

It is a super-3 number, since 3×12199335809³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12199335829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099667904 + 6099667905.

It is an arithmetic number, because the mean of its divisors is an integer number (6099667905).

Almost surely, 2^12199335809 is an apocalyptic number.

It is an amenable number.

12199335809 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199335809 is an equidigital number, since it uses as much as digits as its factorization.

12199335809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 12199335809 in words is "twelve billion, one hundred ninety-nine million, three hundred thirty-five thousand, eight hundred nine".