2281111200 has 144 divisors (see below), whose sum is σ = 8250096960. Its totient is φ = 608290560.

The previous prime is 2281111199. The next prime is 2281111211. The reversal of 2281111200 is 21111822.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31204 + ... + 74403.

It is an arithmetic number, because the mean of its divisors is an integer number (57292340).

Almost surely, 2^2281111200 is an apocalyptic number.

2281111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281111200 is an abundant number, since it is smaller than the sum of its proper divisors (5968985760).

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

2281111200 is a wasteful number, since it uses less digits than its factorization.

2281111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105636 (or 105617 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 2281111200 is about 47760.9798894453. The cubic root of 2281111200 is about 1316.3826580365.

The spelling of 2281111200 in words is "two billion, two hundred eighty-one million, one hundred eleven thousand, two hundred".