12200222 has 4 divisors (see below), whose sum is σ = 18300336. Its totient is φ = 6100110.

The previous prime is 12200179. The next prime is 12200239. The reversal of 12200222 is 22200221.

12200222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22200221 = 23 ⋅965227.

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, 3050054 + ... + 3050057.

It is an arithmetic number, because the mean of its divisors is an integer number (4575084).

Almost surely, 2^12200222 is an apocalyptic number.

12200222 is a deficient number, since it is larger than the sum of its proper divisors (6100114).

12200222 is an equidigital number, since it uses as much as digits as its factorization.

12200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100113.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12200222 is about 3492.8816183776. The cubic root of 12200222 is about 230.2091481299.

Adding to 12200222 its reverse (22200221), we get a palindrome (34400443).

Subtracting 12200222 from its reverse (22200221), we obtain a palindrome (9999999).

The spelling of 12200222 in words is "twelve million, two hundred thousand, two hundred twenty-two".