1223282544432 has 160 divisors (see below), whose sum is σ = 3611393856000. Its totient is φ = 353927202816.

The previous prime is 1223282544431. The next prime is 1223282544439. The reversal of 1223282544432 is 2344452823221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1223282544431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124444 + ... + 1569092.

It is an arithmetic number, because the mean of its divisors is an integer number (22571211600).

Almost surely, 2^{1223282544432} is an apocalyptic number.

1223282544432 is a gapful number since it is divisible by the number (12) 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 1223282544432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805696928000).

1223282544432 is an abundant number, since it is smaller than the sum of its proper divisors (2388111311568).

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

1223282544432 is a wasteful number, since it uses less digits than its factorization.

1223282544432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444755 (or 1444749 counting only the distinct ones).

The product of its digits is 737280, while the sum is 42.

The spelling of 1223282544432 in words is "one trillion, two hundred twenty-three billion, two hundred eighty-two million, five hundred forty-four thousand, four hundred thirty-two".