12342220240 has 160 divisors (see below), whose sum is σ = 34319946240. Its totient is φ = 4039206912.

The previous prime is 12342220223. The next prime is 12342220249. The reversal of 12342220240 is 4202224321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342220249) 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, 1092541 + ... + 1103779.

It is an arithmetic number, because the mean of its divisors is an integer number (214499664).

Almost surely, 2^12342220240 is an apocalyptic number.

12342220240 is a gapful number since it is divisible by the number (10) 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 12342220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17159973120).

12342220240 is an abundant number, since it is smaller than the sum of its proper divisors (21977726000).

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

12342220240 is a wasteful number, since it uses less digits than its factorization.

12342220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11349 (or 11343 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12342220240 its reverse (4202224321), we get a palindrome (16544444561).

The spelling of 12342220240 in words is "twelve billion, three hundred forty-two million, two hundred twenty thousand, two hundred forty".