12122032240 has 160 divisors (see below), whose sum is σ = 31654509696. Its totient is φ = 4292935680.

The previous prime is 12122032187. The next prime is 12122032283. The reversal of 12122032240 is 4223022121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1904904 + ... + 1911256.

Almost surely, 2^12122032240 is an apocalyptic number.

12122032240 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 12122032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15827254848).

12122032240 is an abundant number, since it is smaller than the sum of its proper divisors (19532477456).

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

12122032240 is a wasteful number, since it uses less digits than its factorization.

12122032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467 (or 6461 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12122032240 its reverse (4223022121), we get a palindrome (16345054361).

The spelling of 12122032240 in words is "twelve billion, one hundred twenty-two million, thirty-two thousand, two hundred forty".