1121244442120 has 128 divisors (see below), whose sum is σ = 2788912788480. Its totient is φ = 402305920000.

The previous prime is 1121244442099. The next prime is 1121244442139. The reversal of 1121244442120 is 212444421211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12977865 + ... + 13063975.

It is an arithmetic number, because the mean of its divisors is an integer number (21788381160).

Almost surely, 2^{1121244442120} is an apocalyptic number.

1121244442120 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 1121244442120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394456394240).

1121244442120 is an abundant number, since it is smaller than the sum of its proper divisors (1667668346360).

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

1121244442120 is a wasteful number, since it uses less digits than its factorization.

1121244442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86527 (or 86523 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 1121244442120 its reverse (212444421211), we get a palindrome (1333688863331).

It can be divided in two parts, 1 and 121244442120, that added together give a palindrome (121244442121).

The spelling of 1121244442120 in words is "one trillion, one hundred twenty-one billion, two hundred forty-four million, four hundred forty-two thousand, one hundred twenty".