12200999989 has 2 divisors, whose sum is σ = 12200999990. Its totient is φ = 12200999988.

The previous prime is 12200999953. The next prime is 12200999999. The reversal of 12200999989 is 98999900221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11670480900 + 530519089 = 108030^2 + 23033^2 .

It is an emirp because it is prime and its reverse (98999900221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12200999989 - 2³³ = 3611065397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200999939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100499994 + 6100499995.

It is an arithmetic number, because the mean of its divisors is an integer number (6100499995).

Almost surely, 2^12200999989 is an apocalyptic number.

It is an amenable number.

12200999989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200999989 is an equidigital number, since it uses as much as digits as its factorization.

12200999989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 58.

The spelling of 12200999989 in words is "twelve billion, two hundred million, nine hundred ninety-nine thousand, nine hundred eighty-nine".