12213247376 has 80 divisors (see below), whose sum is σ = 26096026176. Its totient is φ = 5491200000.

The previous prime is 12213247373. The next prime is 12213247429. The reversal of 12213247376 is 67374231221.

It is a super-2 number, since 2×12213247376² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12213247373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9244796 + ... + 9246116.

Almost surely, 2^12213247376 is an apocalyptic number.

12213247376 is a gapful number since it is divisible by the number (16) 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 12213247376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13048013088).

12213247376 is an abundant number, since it is smaller than the sum of its proper divisors (13882778800).

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

12213247376 is a wasteful number, since it uses less digits than its factorization.

12213247376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1866 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

Adding to 12213247376 its reverse (67374231221), we get a palindrome (79587478597).

The spelling of 12213247376 in words is "twelve billion, two hundred thirteen million, two hundred forty-seven thousand, three hundred seventy-six".