1222233211 has 4 divisors (see below), whose sum is σ = 1222731112. Its totient is φ = 1221735312.

The previous prime is 1222233209. The next prime is 1222233251. The reversal of 1222233211 is 1123322221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222233211 - 2¹ = 1222233209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222233251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245250 + ... + 250183.

It is an arithmetic number, because the mean of its divisors is an integer number (305682778).

Almost surely, 2^1222233211 is an apocalyptic number.

1222233211 is a deficient number, since it is larger than the sum of its proper divisors (497901).

1222233211 is an equidigital number, since it uses as much as digits as its factorization.

1222233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497900.

The product of its digits is 288, while the sum is 19.

The square root of 1222233211 is about 34960.4520994795. The cubic root of 1222233211 is about 1069.1813142510.

Adding to 1222233211 its reverse (1123322221), we get a palindrome (2345555432).

The spelling of 1222233211 in words is "one billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred eleven".