1244204020120 has 32 divisors (see below), whose sum is σ = 2859022008000. Its totient is φ = 487092636928.

The previous prime is 1244204020117. The next prime is 1244204020133. The reversal of 1244204020120 is 210204024421.

It is a junction number, because it is equal to n+sod(n) for n = 1244204020091 and 1244204020100.

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 7 ways as a sum of consecutive naturals, for example, 330903445 + ... + 330907204.

It is an arithmetic number, because the mean of its divisors is an integer number (89344437750).

Almost surely, 2^{1244204020120} is an apocalyptic number.

1244204020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244204020120 is an abundant number, since it is smaller than the sum of its proper divisors (1614817987880).

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

1244204020120 is a wasteful number, since it uses less digits than its factorization.

1244204020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661810707 (or 661810703 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 1244204020120 its reverse (210204024421), we get a palindrome (1454408044541).

The spelling of 1244204020120 in words is "one trillion, two hundred forty-four billion, two hundred four million, twenty thousand, one hundred twenty".