1122310992 has 80 divisors (see below), whose sum is σ = 3169529280. Its totient is φ = 339379200.

The previous prime is 1122310957. The next prime is 1122310993. The reversal of 1122310992 is 2990132211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122310993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283684 + ... + 287612.

It is an arithmetic number, because the mean of its divisors is an integer number (39619116).

Almost surely, 2^1122310992 is an apocalyptic number.

1122310992 is a gapful number since it is divisible by the number (12) 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 1122310992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584764640).

1122310992 is an abundant number, since it is smaller than the sum of its proper divisors (2047218288).

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

1122310992 is a wasteful number, since it uses less digits than its factorization.

1122310992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492 (or 4486 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1122310992 is about 33500.9103159899. The cubic root of 1122310992 is about 1039.2126042014.

The spelling of 1122310992 in words is "one billion, one hundred twenty-two million, three hundred ten thousand, nine hundred ninety-two".