129224322 has 20 divisors (see below), whose sum is σ = 289558566. Its totient is φ = 43074720.

The previous prime is 129224321. The next prime is 129224341. The reversal of 129224322 is 223422921.

It can be written as a sum of positive squares in only one way, i.e., 98188281 + 31036041 = 9909^2 + 5571^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (129224321) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 398679 + ... + 399002.

Almost surely, 2^129224322 is an apocalyptic number.

129224322 is an abundant number, since it is smaller than the sum of its proper divisors (160334244).

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

129224322 is an equidigital number, since it uses as much as digits as its factorization.

129224322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797695 (or 797686 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 129224322 is about 11367.6876276576. The cubic root of 129224322 is about 505.5701458540.

The spelling of 129224322 in words is "one hundred twenty-nine million, two hundred twenty-four thousand, three hundred twenty-two".