1122312400 has 60 divisors (see below), whose sum is σ = 2941490304. Its totient is φ = 408112000.

The previous prime is 1122312361. The next prime is 1122312403. The reversal of 1122312400 is 42132211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122312403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123136 + ... + 131935.

Almost surely, 2^1122312400 is an apocalyptic number.

1122312400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122312400 is an abundant number, since it is smaller than the sum of its proper divisors (1819177904).

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

1122312400 is a wasteful number, since it uses less digits than its factorization.

1122312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255100 (or 255089 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1122312400 is about 33500.9313303377. The cubic root of 1122312400 is about 1039.2130387841.

Adding to 1122312400 its reverse (42132211), we get a palindrome (1164444611).

The spelling of 1122312400 in words is "one billion, one hundred twenty-two million, three hundred twelve thousand, four hundred".