1122203264 has 96 divisors (see below), whose sum is σ = 2767047840. Its totient is φ = 443888640.

The previous prime is 1122203263. The next prime is 1122203273. The reversal of 1122203264 is 4623022211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1122203263) 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 11 ways as a sum of consecutive naturals, for example, 147719 + ... + 155129.

It is an arithmetic number, because the mean of its divisors is an integer number (28823415).

Almost surely, 2^1122203264 is an apocalyptic number.

1122203264 is a gapful number since it is divisible by the number (14) 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 1122203264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383523920).

1122203264 is an abundant number, since it is smaller than the sum of its proper divisors (1644844576).

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

1122203264 is an equidigital number, since it uses as much as digits as its factorization.

1122203264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7458 (or 7433 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1122203264 is about 33499.3024404987. The cubic root of 1122203264 is about 1039.1793526106.

Adding to 1122203264 its reverse (4623022211), we get a palindrome (5745225475).

The spelling of 1122203264 in words is "one billion, one hundred twenty-two million, two hundred three thousand, two hundred sixty-four".