12281937822 has 192 divisors, whose sum is σ = 35143041024. Its totient is φ = 3121791840.

The previous prime is 12281937809. The next prime is 12281937859. The reversal of 12281937822 is 22873918221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1755343 + ... + 1762325.

It is an arithmetic number, because the mean of its divisors is an integer number (183036672).

Almost surely, 2^12281937822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12281937822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17571520512).

12281937822 is an abundant number, since it is smaller than the sum of its proper divisors (22861103202).

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

12281937822 is a wasteful number, since it uses less digits than its factorization.

12281937822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065 (or 7053 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 12281937822 in words is "twelve billion, two hundred eighty-one million, nine hundred thirty-seven thousand, eight hundred twenty-two".