12241221001240 has 96 divisors (see below), whose sum is σ = 34952206222800. Its totient is φ = 3815445500160.

The previous prime is 12241221001171. The next prime is 12241221001249. The reversal of 12241221001240 is 4210012214221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241221001249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283865755 + ... + 283908874.

Almost surely, 2^{12241221001240} is an apocalyptic number.

12241221001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12241221001240 is an abundant number, since it is smaller than the sum of its proper divisors (22710985221560).

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

12241221001240 is a wasteful number, since it uses less digits than its factorization.

12241221001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567774665 (or 567774654 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12241221001240 its reverse (4210012214221), we get a palindrome (16451233215461).

The spelling of 12241221001240 in words is "twelve trillion, two hundred forty-one billion, two hundred twenty-one million, one thousand, two hundred forty".