1155571228000 has 96 divisors (see below), whose sum is σ = 3244844086848. Its totient is φ = 396195840000.

The previous prime is 1155571227961. The next prime is 1155571228013. The reversal of 1155571228000 is 8221755511.

It is a super-3 number, since 3×1155571228000³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20607201 + ... + 20663200.

It is an arithmetic number, because the mean of its divisors is an integer number (33800459238).

Almost surely, 2^{1155571228000} is an apocalyptic number.

1155571228000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155571228000 is an abundant number, since it is smaller than the sum of its proper divisors (2089272858848).

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

1155571228000 is an equidigital number, since it uses as much as digits as its factorization.

1155571228000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41270433 (or 41270415 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 37.

The spelling of 1155571228000 in words is "one trillion, one hundred fifty-five billion, five hundred seventy-one million, two hundred twenty-eight thousand".