1222323111 has 6 divisors (see below), whose sum is σ = 1765577840. Its totient is φ = 814882068.

The previous prime is 1222323101. The next prime is 1222323121. The reversal of 1222323111 is 1113232221.

1222323111 is a `hidden beast` number, since 122 + 232 + 311 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1222323101) and next prime (1222323121).

It is not a de Polignac number, because 1222323111 - 2⁵ = 1222323079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222323101) 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 5 ways as a sum of consecutive naturals, for example, 67906831 + ... + 67906848.

Almost surely, 2^1222323111 is an apocalyptic number.

1222323111 is a deficient number, since it is larger than the sum of its proper divisors (543254729).

1222323111 is a wasteful number, since it uses less digits than its factorization.

1222323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135813685 (or 135813682 counting only the distinct ones).

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

The square root of 1222323111 is about 34961.7378143593. The cubic root of 1222323111 is about 1069.2075277545.

Adding to 1222323111 its reverse (1113232221), we get a palindrome (2335555332).

The spelling of 1222323111 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, one hundred eleven".