11222221120111 has 8 divisors (see below), whose sum is σ = 11412617495040. Its totient is φ = 11031831053208.

The previous prime is 11222221120079. The next prime is 11222221120171. The reversal of 11222221120111 is 11102112222211.

It is a happy number.

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 11222221120111 - 2⁵ = 11222221120079 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 (11222221120171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082690 + ... + 5175136.

It is an arithmetic number, because the mean of its divisors is an integer number (1426577186880).

Almost surely, 2^{11222221120111} is an apocalyptic number.

11222221120111 is a deficient number, since it is larger than the sum of its proper divisors (190396374929).

11222221120111 is an equidigital number, since it uses as much as digits as its factorization.

11222221120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154013.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11222221120111 its reverse (11102112222211), we get a palindrome (22324333342322).

The spelling of 11222221120111 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, one hundred eleven".