12213122 has 16 divisors (see below), whose sum is σ = 18712512.
Its totient is φ = 5977200.
The previous prime is 12213109. The next prime is 12213127. The reversal of 12213122 is 22131221.
Adding to 12213122 its reverse (22131221), we get a palindrome (34344343).
It is a happy number.
12213122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 12213097 and 12213106.
It is not an unprimeable number, because it can be changed into a prime (12213127) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20513 + ... + 21099.
It is an arithmetic number, because the mean of its divisors is an integer number (1169532).
Almost surely, 212213122 is an apocalyptic number.
12213122 is a deficient number, since it is larger than the sum of its proper divisors (6499390).
12213122 is a wasteful number, since it uses less digits than its factorization.
12213122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 793.
The product of its digits is 48, while the sum is 14.
The square root of 12213122 is about 3494.7277433299.
The cubic root of 12213122 is about 230.2902573630.
The spelling of 12213122 in words is "twelve million, two hundred thirteen thousand, one hundred twenty-two".