12231111400 has 48 divisors (see below), whose sum is σ = 28446616800. Its totient is φ = 4890847680.

The previous prime is 12231111391. The next prime is 12231111437. The reversal of 12231111400 is 411113221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 747709 + ... + 763891.

It is an arithmetic number, because the mean of its divisors is an integer number (592637850).

Almost surely, 2^12231111400 is an apocalyptic number.

12231111400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231111400 is an abundant number, since it is smaller than the sum of its proper divisors (16215505400).

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

12231111400 is a wasteful number, since it uses less digits than its factorization.

12231111400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19978 (or 19969 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12231111400 its reverse (411113221), we get a palindrome (12642224621).

The spelling of 12231111400 in words is "twelve billion, two hundred thirty-one million, one hundred eleven thousand, four hundred".