12200989 has 2 divisors, whose sum is σ = 12200990. Its totient is φ = 12200988.

The previous prime is 12200963. The next prime is 12201041. The reversal of 12200989 is 98900221.

12200989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10048900 + 2152089 = 3170^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200989 - 2⁵ = 12200957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12200989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100494 + 6100495.

It is an arithmetic number, because the mean of its divisors is an integer number (6100495).

Almost surely, 2^12200989 is an apocalyptic number.

It is an amenable number.

12200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200989 is an equidigital number, since it uses as much as digits as its factorization.

12200989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 12200989 is about 3492.9914113837. The cubic root of 12200989 is about 230.2139722694.

The spelling of 12200989 in words is "twelve million, two hundred thousand, nine hundred eighty-nine".