1121169600 has 420 divisors, whose sum is σ = 4241660808. Its totient is φ = 290304000.

The previous prime is 1121169593. The next prime is 1121169611. The reversal of 1121169600 is 69611211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5313495 + ... + 5313705.

Almost surely, 2^1121169600 is an apocalyptic number.

1121169600 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 1121169600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2120830404).

1121169600 is an abundant number, since it is smaller than the sum of its proper divisors (3120491208).

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

1121169600 is a wasteful number, since it uses less digits than its factorization.

1121169600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1121169600 is about 33483.8707439866. The cubic root of 1121169600 is about 1038.8601911021.

The spelling of 1121169600 in words is "one billion, one hundred twenty-one million, one hundred sixty-nine thousand, six hundred".