1240221200100 has 72 divisors (see below), whose sum is σ = 3589738471200. Its totient is φ = 330599834880.

The previous prime is 1240221200087. The next prime is 1240221200111. The reversal of 1240221200100 is 10021220421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1240221200100.

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 23 ways as a sum of consecutive naturals, for example, 4851 + ... + 1574949.

Almost surely, 2^{1240221200100} is an apocalyptic number.

1240221200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240221200100 is an abundant number, since it is smaller than the sum of its proper divisors (2349517271100).

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

1240221200100 is a wasteful number, since it uses less digits than its factorization.

1240221200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572749 (or 1572742 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1240221200100 its reverse (10021220421), we get a palindrome (1250242420521).

The spelling of 1240221200100 in words is "one trillion, two hundred forty billion, two hundred twenty-one million, two hundred thousand, one hundred".