1121223404 has 24 divisors (see below), whose sum is σ = 2319774240. Its totient is φ = 463954176.

The previous prime is 1121223401. The next prime is 1121223413. The reversal of 1121223404 is 4043221211.

It is not an unprimeable number, because it can be changed into a prime (1121223401) 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 7 ways as a sum of consecutive naturals, for example, 689597 + ... + 691220.

It is an arithmetic number, because the mean of its divisors is an integer number (96657260).

Almost surely, 2^1121223404 is an apocalyptic number.

1121223404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121223404 is an abundant number, since it is smaller than the sum of its proper divisors (1198550836).

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

1121223404 is a wasteful number, since it uses less digits than its factorization.

1121223404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380857 (or 1380855 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1121223404 is about 33484.6741659524. The cubic root of 1121223404 is about 1038.8768088495.

Adding to 1121223404 its reverse (4043221211), we get a palindrome (5164444615).

The spelling of 1121223404 in words is "one billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred four".