12061222 has 4 divisors (see below), whose sum is σ = 18091836. Its totient is φ = 6030610.

The previous prime is 12061213. The next prime is 12061237. The reversal of 12061222 is 22216021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22216021 = 37 ⋅600433.

It is a super-2 number, since 2×12061222² = 290946152266568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12061196 and 12061205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3015304 + ... + 3015307.

It is an arithmetic number, because the mean of its divisors is an integer number (4522959).

Almost surely, 2^12061222 is an apocalyptic number.

12061222 is a deficient number, since it is larger than the sum of its proper divisors (6030614).

12061222 is an equidigital number, since it uses as much as digits as its factorization.

12061222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030613.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12061222 is about 3472.9270075831. The cubic root of 12061222 is about 229.3315310124.

Adding to 12061222 its reverse (22216021), we get a palindrome (34277243).

The spelling of 12061222 in words is "twelve million, sixty-one thousand, two hundred twenty-two".