1211222 has 8 divisors (see below), whose sum is σ = 1861272. Its totient is φ = 590800.

The previous prime is 1211207. The next prime is 1211227. The reversal of 1211222 is 2221121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7304 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (232659).

2^1211222 is an apocalyptic number.

1211222 is a deficient number, since it is larger than the sum of its proper divisors (650050).

1211222 is a wasteful number, since it uses less digits than its factorization.

1211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14814.

The product of its digits is 16, while the sum is 11.

The square root of 1211222 is about 1100.5553143754. Note that the first 3 decimals coincide. The cubic root of 1211222 is about 106.5960839472.

Adding to 1211222 its reverse (2221121), we get a palindrome (3432343).

The spelling of 1211222 in words is "one million, two hundred eleven thousand, two hundred twenty-two".