129022 has 8 divisors (see below), whose sum is σ = 199872. Its totient is φ = 62400.

The previous prime is 129011. The next prime is 129023. The reversal of 129022 is 220921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 128987 and 129005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129023) by changing a digit.

129022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979 + ... + 1102.

It is an arithmetic number, because the mean of its divisors is an integer number (24984).

2¹²⁹⁰²² is an apocalyptic number.

129022 is a deficient number, since it is larger than the sum of its proper divisors (70850).

129022 is a wasteful number, since it uses less digits than its factorization.

129022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 129022 is about 359.1963251482. The cubic root of 129022 is about 50.5306156870.

Adding to 129022 its reverse (220921), we get a palindrome (349943).

The spelling of 129022 in words is "one hundred twenty-nine thousand, twenty-two".