129922 has 16 divisors (see below), whose sum is σ = 221760. Its totient is φ = 56592.

The previous prime is 129919. The next prime is 129937. The reversal of 129922 is 229921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363 + ... + 625.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2¹²⁹⁹²² is an apocalyptic number.

129922 is a deficient number, since it is larger than the sum of its proper divisors (91838).

129922 is a wasteful number, since it uses less digits than its factorization.

129922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its digits is 648, while the sum is 25.

The square root of 129922 is about 360.4469447783. The cubic root of 129922 is about 50.6478365700.

Subtracting 129922 from its reverse (229921), we obtain a palindrome (99999).

The spelling of 129922 in words is "one hundred twenty-nine thousand, nine hundred twenty-two".