12223122 has 16 divisors (see below), whose sum is σ = 24503040. Its totient is φ = 4064912.

The previous prime is 12223109. The next prime is 12223139. The reversal of 12223122 is 22132221.

It is a happy number.

It is a super-2 number, since 2×12223122² = 298809422853768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 748 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (1531440).

Almost surely, 2^12223122 is an apocalyptic number.

12223122 is an abundant number, since it is smaller than the sum of its proper divisors (12279918).

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

12223122 is a wasteful number, since it uses less digits than its factorization.

12223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737.

The product of its digits is 96, while the sum is 15.

The square root of 12223122 is about 3496.1581771997. The cubic root of 12223122 is about 230.3530934483.

Adding to 12223122 its reverse (22132221), we get a palindrome (34355343).

Subtracting 12223122 from its reverse (22132221), we obtain a palindrome (9909099).

The spelling of 12223122 in words is "twelve million, two hundred twenty-three thousand, one hundred twenty-two".