12002199991 has 2 divisors, whose sum is σ = 12002199992. Its totient is φ = 12002199990.

The previous prime is 12002199973. The next prime is 12002200061. The reversal of 12002199991 is 19999120021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12002199991 - 2⁷ = 12002199863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002199901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001099995 + 6001099996.

It is an arithmetic number, because the mean of its divisors is an integer number (6001099996).

Almost surely, 2^12002199991 is an apocalyptic number.

12002199991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002199991 is an equidigital number, since it uses as much as digits as its factorization.

12002199991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 12002199991 in words is "twelve billion, two million, one hundred ninety-nine thousand, nine hundred ninety-one".