1122720555200 has 168 divisors, whose sum is σ = 2930025636000. Its totient is φ = 421959516160.

The previous prime is 1122720555199. The next prime is 1122720555247. The reversal of 1122720555200 is 25550272211.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16258346 + ... + 16327254.

Almost surely, 2^{1122720555200} is an apocalyptic number.

1122720555200 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 1122720555200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465012818000).

1122720555200 is an abundant number, since it is smaller than the sum of its proper divisors (1807305080800).

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

1122720555200 is a wasteful number, since it uses less digits than its factorization.

1122720555200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69547 (or 69532 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 1122720555200 in words is "one trillion, one hundred twenty-two billion, seven hundred twenty million, five hundred fifty-five thousand, two hundred".