1222439171111 has 4 divisors (see below), whose sum is σ = 1230643461000. Its totient is φ = 1214234881224.

The previous prime is 1222439171077. The next prime is 1222439171123. The reversal of 1222439171111 is 1111719342221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222439171111 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 (1222439171131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4102144721 + ... + 4102145018.

It is an arithmetic number, because the mean of its divisors is an integer number (307660865250).

Almost surely, 2^{1222439171111} is an apocalyptic number.

1222439171111 is a deficient number, since it is larger than the sum of its proper divisors (8204289889).

1222439171111 is an equidigital number, since it uses as much as digits as its factorization.

1222439171111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204289888.

The product of its digits is 6048, while the sum is 35.

The spelling of 1222439171111 in words is "one trillion, two hundred twenty-two billion, four hundred thirty-nine million, one hundred seventy-one thousand, one hundred eleven".