129022230 has 32 divisors (see below), whose sum is σ = 311377248. Its totient is φ = 34214400.

The previous prime is 129022213. The next prime is 129022261. The reversal of 129022230 is 32220921.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129022197 and 129022206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6451 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (9730539).

Almost surely, 2^129022230 is an apocalyptic number.

129022230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129022230 is an abundant number, since it is smaller than the sum of its proper divisors (182355018).

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

129022230 is a wasteful number, since it uses less digits than its factorization.

129022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23952.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 129022230 is about 11358.7952706262. The cubic root of 129022230 is about 505.3064571297.

The spelling of 129022230 in words is "one hundred twenty-nine million, twenty-two thousand, two hundred thirty".