12199999993 has 2 divisors, whose sum is σ = 12199999994. Its totient is φ = 12199999992.

The previous prime is 12199999943. The next prime is 12200000017. The reversal of 12199999993 is 39999999121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11647373929 + 552626064 = 107923^2 + 23508^2 .

It is a cyclic number.

It is not a de Polignac number, because 12199999993 - 2⁹ = 12199999481 is a prime.

It is not a weakly prime, because it can be changed into another prime (12199999943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099999996 + 6099999997.

It is an arithmetic number, because the mean of its divisors is an integer number (6099999997).

Almost surely, 2^12199999993 is an apocalyptic number.

It is an amenable number.

12199999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199999993 is an equidigital number, since it uses as much as digits as its factorization.

12199999993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28697814, while the sum is 70.

The spelling of 12199999993 in words is "twelve billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-three".