1211332222 has 16 divisors (see below), whose sum is σ = 1860005952. Its totient is φ = 591390720.

The previous prime is 1211332219. The next prime is 1211332267. The reversal of 1211332222 is 2222331121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211332222.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25822 + ... + 55582.

It is an arithmetic number, because the mean of its divisors is an integer number (116250372).

Almost surely, 2^1211332222 is an apocalyptic number.

1211332222 is a deficient number, since it is larger than the sum of its proper divisors (648673730).

1211332222 is a wasteful number, since it uses less digits than its factorization.

1211332222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30243.

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

The square root of 1211332222 is about 34804.1983387062. The cubic root of 1211332222 is about 1065.9931728704.

Adding to 1211332222 its reverse (2222331121), we get a palindrome (3433663343).

The spelling of 1211332222 in words is "one billion, two hundred eleven million, three hundred thirty-two thousand, two hundred twenty-two".