12226233856 has 80 divisors (see below), whose sum is σ = 24840535104. Its totient is φ = 6010896384.

The previous prime is 12226233853. The next prime is 12226233869. The reversal of 12226233856 is 65833262221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226233853) 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, 8591161 + ... + 8592583.

Almost surely, 2^12226233856 is an apocalyptic number.

12226233856 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 12226233856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12420267552).

12226233856 is an abundant number, since it is smaller than the sum of its proper divisors (12614301248).

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

12226233856 is an equidigital number, since it uses as much as digits as its factorization.

12226233856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711 (or 1695 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 12226233856 in words is "twelve billion, two hundred twenty-six million, two hundred thirty-three thousand, eight hundred fifty-six".