12214989 has 16 divisors (see below), whose sum is σ = 18158400. Its totient is φ = 8115408.

The previous prime is 12214981. The next prime is 12214991. The reversal of 12214989 is 98941221.

It is not a de Polignac number, because 12214989 - 2³ = 12214981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9922 + ... + 11084.

It is an arithmetic number, because the mean of its divisors is an integer number (1134900).

Almost surely, 2^12214989 is an apocalyptic number.

It is an amenable number.

12214989 is a deficient number, since it is larger than the sum of its proper divisors (5943411).

12214989 is a wasteful number, since it uses less digits than its factorization.

12214989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 12214989 is about 3494.9948497816. The cubic root of 12214989 is about 230.3019914635.

Adding to 12214989 its sum of digits (36), we get a square (12215025 = 3495²).

It can be divided in two parts, 12214 and 989, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12214989 in words is "twelve million, two hundred fourteen thousand, nine hundred eighty-nine".