1222321111 has 8 divisors (see below), whose sum is σ = 1355301648. Its totient is φ = 1092984000.

The previous prime is 1222321099. The next prime is 1222321127. The reversal of 1222321111 is 1111232221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222321111 - 2²¹ = 1220223959 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 (1222321181) 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 7 ways as a sum of consecutive naturals, for example, 910150 + ... + 911491.

It is an arithmetic number, because the mean of its divisors is an integer number (169412706).

Almost surely, 2^1222321111 is an apocalyptic number.

1222321111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222321111 is a deficient number, since it is larger than the sum of its proper divisors (132980537).

1222321111 is a wasteful number, since it uses less digits than its factorization.

1222321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821713.

The product of its digits is 48, while the sum is 16.

The square root of 1222321111 is about 34961.7092116504. The cubic root of 1222321111 is about 1069.2069445982.

Adding to 1222321111 its reverse (1111232221), we get a palindrome (2333553332).

The spelling of 1222321111 in words is "one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred eleven".