1222133232 has 20 divisors (see below), whose sum is σ = 3157177640. Its totient is φ = 407377728.

The previous prime is 1222133203. The next prime is 1222133233. The reversal of 1222133232 is 2323312221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1222133199 and 1222133208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222133233) 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 3 ways as a sum of consecutive naturals, for example, 12730507 + ... + 12730602.

It is an arithmetic number, because the mean of its divisors is an integer number (157858882).

Almost surely, 2^1222133232 is an apocalyptic number.

1222133232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222133232 is an abundant number, since it is smaller than the sum of its proper divisors (1935044408).

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

1222133232 is a wasteful number, since it uses less digits than its factorization.

1222133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25461120 (or 25461114 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1222133232 is about 34959.0221831218. The cubic root of 1222133232 is about 1069.1521603513.

Adding to 1222133232 its reverse (2323312221), we get a palindrome (3545445453).

The spelling of 1222133232 in words is "one billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred thirty-two".