129441222 has 12 divisors (see below), whose sum is σ = 280456020. Its totient is φ = 43147068.

The previous prime is 129441173. The next prime is 129441227. The reversal of 129441222 is 222144921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129441227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3595572 + ... + 3595607.

It is an arithmetic number, because the mean of its divisors is an integer number (23371335).

Almost surely, 2^129441222 is an apocalyptic number.

129441222 is an abundant number, since it is smaller than the sum of its proper divisors (151014798).

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

129441222 is a wasteful number, since it uses less digits than its factorization.

129441222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191187 (or 7191184 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 129441222 is about 11377.2238265756. The cubic root of 129441222 is about 505.8528502943.

The spelling of 129441222 in words is "one hundred twenty-nine million, four hundred forty-one thousand, two hundred twenty-two".