12219732045 has 48 divisors (see below), whose sum is σ = 22202212032. Its totient is φ = 6210328320.

The previous prime is 12219732037. The next prime is 12219732061. The reversal of 12219732045 is 54023791221.

It is not a de Polignac number, because 12219732045 - 2³ = 12219732037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2322 + ... + 156348.

It is an arithmetic number, because the mean of its divisors is an integer number (462546084).

Almost surely, 2^12219732045 is an apocalyptic number.

12219732045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12219732045 is a deficient number, since it is larger than the sum of its proper divisors (9982479987).

12219732045 is a wasteful number, since it uses less digits than its factorization.

12219732045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154122 (or 154119 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 12219732045 in words is "twelve billion, two hundred nineteen million, seven hundred thirty-two thousand, forty-five".