1222533264 has 40 divisors (see below), whose sum is σ = 3324435040. Its totient is φ = 386062848.

The previous prime is 1222533253. The next prime is 1222533287. The reversal of 1222533264 is 4623352221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669337 + ... + 671160.

It is an arithmetic number, because the mean of its divisors is an integer number (83110876).

Almost surely, 2^1222533264 is an apocalyptic number.

It is an amenable number.

1222533264 is an abundant number, since it is smaller than the sum of its proper divisors (2101901776).

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

1222533264 is a wasteful number, since it uses less digits than its factorization.

1222533264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340527 (or 1340521 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 1222533264 is about 34964.7431564998. The cubic root of 1222533264 is about 1069.2688002313.

Adding to 1222533264 its reverse (4623352221), we get a palindrome (5845885485).

The spelling of 1222533264 in words is "one billion, two hundred twenty-two million, five hundred thirty-three thousand, two hundred sixty-four".