12189578322 has 16 divisors (see below), whose sum is σ = 24381266112. Its totient is φ = 4062841200.

The previous prime is 12189578309. The next prime is 12189578327. The reversal of 12189578322 is 22387598121.

It is not an unprimeable number, because it can be changed into a prime (12189578327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7054 + ... + 156297.

It is an arithmetic number, because the mean of its divisors is an integer number (1523829132).

Almost surely, 2^12189578322 is an apocalyptic number.

12189578322 is an abundant number, since it is smaller than the sum of its proper divisors (12191687790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12189578322 is a wasteful number, since it uses less digits than its factorization.

12189578322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175793.

The product of its digits is 483840, while the sum is 48.

The spelling of 12189578322 in words is "twelve billion, one hundred eighty-nine million, five hundred seventy-eight thousand, three hundred twenty-two".