12213966380 has 144 divisors (see below), whose sum is σ = 32612025600. Its totient is φ = 3799635840.

The previous prime is 12213966307. The next prime is 12213966389. The reversal of 12213966380 is 8366931221.

It is not an unprimeable number, because it can be changed into a prime (12213966389) 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 47 ways as a sum of consecutive naturals, for example, 9259361 + ... + 9260679.

It is an arithmetic number, because the mean of its divisors is an integer number (226472400).

Almost surely, 2^12213966380 is an apocalyptic number.

12213966380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12213966380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16306012800).

12213966380 is an abundant number, since it is smaller than the sum of its proper divisors (20398059220).

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

12213966380 is a wasteful number, since it uses less digits than its factorization.

12213966380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 12213966380 in words is "twelve billion, two hundred thirteen million, nine hundred sixty-six thousand, three hundred eighty".