1222134432 has 24 divisors (see below), whose sum is σ = 3208103136. Its totient is φ = 407378112.

The previous prime is 1222134427. The next prime is 1222134439. The reversal of 1222134432 is 2344312221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1222134432² = 2987225139759925248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (1222134439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365188 + ... + 6365379.

It is an arithmetic number, because the mean of its divisors is an integer number (133670964).

Almost surely, 2^1222134432 is an apocalyptic number.

1222134432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222134432 is an abundant number, since it is smaller than the sum of its proper divisors (1985968704).

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

1222134432 is a wasteful number, since it uses less digits than its factorization.

1222134432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730580 (or 12730572 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1222134432 is about 34959.0393460690. The cubic root of 1222134432 is about 1069.1525102810.

Adding to 1222134432 its reverse (2344312221), we get a palindrome (3566446653).

The spelling of 1222134432 in words is "one billion, two hundred twenty-two million, one hundred thirty-four thousand, four hundred thirty-two".