1122440000 has 140 divisors (see below), whose sum is σ = 3037502688. Its totient is φ = 408000000.

The previous prime is 1122439993. The next prime is 1122440003. The reversal of 1122440000 is 442211.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122440003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 438725 + ... + 441275.

Almost surely, 2^1122440000 is an apocalyptic number.

1122440000 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 1122440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518751344).

1122440000 is an abundant number, since it is smaller than the sum of its proper divisors (1915062688).

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

1122440000 is an equidigital number, since it uses as much as digits as its factorization.

1122440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1122440000 is about 33502.8357008776. The cubic root of 1122440000 is about 1039.2524213299.

Adding to 1122440000 its reverse (442211), we get a palindrome (1122882211).

The spelling of 1122440000 in words is "one billion, one hundred twenty-two million, four hundred forty thousand".