12220240304240 has 40 divisors (see below), whose sum is σ = 28533998917008. Its totient is φ = 4867117160960.

The previous prime is 12220240304171. The next prime is 12220240304257. The reversal of 12220240304240 is 4240304202221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327777506 + ... + 327814785.

Almost surely, 2^{12220240304240} is an apocalyptic number.

12220240304240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220240304240 is an abundant number, since it is smaller than the sum of its proper divisors (16313758612768).

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

12220240304240 is a wasteful number, since it uses less digits than its factorization.

12220240304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655592537 (or 655592531 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 12220240304240 its reverse (4240304202221), we get a palindrome (16460544506461).

The spelling of 12220240304240 in words is "twelve trillion, two hundred twenty billion, two hundred forty million, three hundred four thousand, two hundred forty".