1122120112000 has 128 divisors (see below), whose sum is σ = 2849231998080. Its totient is φ = 439297792000.

The previous prime is 1122120111989. The next prime is 1122120112007. The reversal of 1122120112000 is 2110212211.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122120112007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5910 + ... + 1498090.

It is an arithmetic number, because the mean of its divisors is an integer number (22259624985).

Almost surely, 2^{1122120112000} is an apocalyptic number.

1122120112000 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 1122120112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424615999040).

1122120112000 is an abundant number, since it is smaller than the sum of its proper divisors (1727111886080).

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

1122120112000 is an equidigital number, since it uses as much as digits as its factorization.

1122120112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492257 (or 1492235 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1122120112000 its reverse (2110212211), we get a palindrome (1124230324211).

The spelling of 1122120112000 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twelve thousand".