12129622 has 8 divisors (see below), whose sum is σ = 18253872. Its totient is φ = 6045000.

The previous prime is 12129617. The next prime is 12129659. The reversal of 12129622 is 22692121.

12129622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9129 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (2281734).

Almost surely, 2^12129622 is an apocalyptic number.

12129622 is a deficient number, since it is larger than the sum of its proper divisors (6124250).

12129622 is a wasteful number, since it uses less digits than its factorization.

12129622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19814.

The product of its digits is 864, while the sum is 25.

The square root of 12129622 is about 3482.7606865818. The cubic root of 12129622 is about 229.7642322525.

The spelling of 12129622 in words is "twelve million, one hundred twenty-nine thousand, six hundred twenty-two".