1240404220000 has 240 divisors, whose sum is σ = 3335963400000. Its totient is φ = 450112320000.

The previous prime is 1240404219973. The next prime is 1240404220021. The reversal of 1240404220000 is 224040421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240404220000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 109774351 + ... + 109785649.

It is an arithmetic number, because the mean of its divisors is an integer number (13899847500).

Almost surely, 2^{1240404220000} is an apocalyptic number.

1240404220000 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 1240404220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667981700000).

1240404220000 is an abundant number, since it is smaller than the sum of its proper divisors (2095559180000).

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

1240404220000 is a wasteful number, since it uses less digits than its factorization.

1240404220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11839 (or 11816 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 1240404220000 its reverse (224040421), we get a palindrome (1240628260421).

The spelling of 1240404220000 in words is "one trillion, two hundred forty billion, four hundred four million, two hundred twenty thousand".