12221489599 has 16 divisors (see below), whose sum is σ = 13916390400. Its totient is φ = 10624188960.

The previous prime is 12221489587. The next prime is 12221489639. The reversal of 12221489599 is 99598412221.

It is a happy number.

It is not a de Polignac number, because 12221489599 - 2⁹ = 12221489087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221489509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302577 + ... + 1311925.

It is an arithmetic number, because the mean of its divisors is an integer number (869774400).

Almost surely, 2^12221489599 is an apocalyptic number.

12221489599 is a deficient number, since it is larger than the sum of its proper divisors (1694900801).

12221489599 is a wasteful number, since it uses less digits than its factorization.

12221489599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550.

The product of its digits is 933120, while the sum is 52.

The spelling of 12221489599 in words is "twelve billion, two hundred twenty-one million, four hundred eighty-nine thousand, five hundred ninety-nine".