12100032240 has 80 divisors (see below), whose sum is σ = 37529124768. Its totient is φ = 3225038848.

The previous prime is 12100032227. The next prime is 12100032271. The reversal of 12100032240 is 4223000121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505012 + ... + 528428.

Almost surely, 2^12100032240 is an apocalyptic number.

12100032240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100032240 is an abundant number, since it is smaller than the sum of its proper divisors (25429092528).

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

12100032240 is a wasteful number, since it uses less digits than its factorization.

12100032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586 (or 25580 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12100032240 its reverse (4223000121), we get a palindrome (16323032361).

The spelling of 12100032240 in words is "twelve billion, one hundred million, thirty-two thousand, two hundred forty".