1122289200 has 90 divisors (see below), whose sum is σ = 3894667764. Its totient is φ = 299276160.

The previous prime is 1122289193. The next prime is 1122289253. The reversal of 1122289200 is 29822211.

It is a tau number, because it is divible by the number of its divisors (90).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 152274 + ... + 159473.

Almost surely, 2^1122289200 is an apocalyptic number.

1122289200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122289200 is an abundant number, since it is smaller than the sum of its proper divisors (2772378564).

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

1122289200 is a wasteful number, since it uses less digits than its factorization.

1122289200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311771 (or 311757 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1122289200 is about 33500.5850695178. The cubic root of 1122289200 is about 1039.2058780005.

The spelling of 1122289200 in words is "one billion, one hundred twenty-two million, two hundred eighty-nine thousand, two hundred".