12213112000 has 56 divisors (see below), whose sum is σ = 30245791680. Its totient is φ = 4885241600.

The previous prime is 12213111971. The next prime is 12213112013. The reversal of 12213112000 is 21131221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755320 + ... + 771319.

Almost surely, 2^12213112000 is an apocalyptic number.

12213112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213112000 is an abundant number, since it is smaller than the sum of its proper divisors (18032679680).

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

12213112000 is an equidigital number, since it uses as much as digits as its factorization.

12213112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526666 (or 1526646 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12213112000 its reverse (21131221), we get a palindrome (12234243221).

The spelling of 12213112000 in words is "twelve billion, two hundred thirteen million, one hundred twelve thousand".