1222233111 has 16 divisors (see below), whose sum is σ = 1975326720. Its totient is φ = 740747160.

The previous prime is 1222233049. The next prime is 1222233119. The reversal of 1222233111 is 1113322221.

It is not a de Polignac number, because 1222233111 - 2¹⁰ = 1222232087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222233119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2057335 + ... + 2057928.

It is an arithmetic number, because the mean of its divisors is an integer number (123457920).

Almost surely, 2^1222233111 is an apocalyptic number.

1222233111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222233111 is a deficient number, since it is larger than the sum of its proper divisors (753093609).

1222233111 is a wasteful number, since it uses less digits than its factorization.

1222233111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115283 (or 4115277 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1222233111 is about 34960.4506692920. The cubic root of 1222233111 is about 1069.1812850918.

Adding to 1222233111 its reverse (1113322221), we get a palindrome (2335555332).

The spelling of 1222233111 in words is "one billion, two hundred twenty-two million, two hundred thirty-three thousand, one hundred eleven".