12320022 has 64 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 3384960.

The previous prime is 12320017. The next prime is 12320023. The reversal of 12320022 is 22002321.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71128 + ... + 71300.

It is an arithmetic number, because the mean of its divisors is an integer number (460404).

Almost surely, 2^12320022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12320022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732928).

12320022 is an abundant number, since it is smaller than the sum of its proper divisors (17145834).

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

12320022 is a wasteful number, since it uses less digits than its factorization.

12320022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 12320022 is about 3509.9888888713. The cubic root of 12320022 is about 230.9602075345.

Adding to 12320022 its reverse (22002321), we get a palindrome (34322343).

The spelling of 12320022 in words is "twelve million, three hundred twenty thousand, twenty-two".