111011221222 has 8 divisors (see below), whose sum is σ = 181654725672. Its totient is φ = 50459646000.

The previous prime is 111011221199. The next prime is 111011221261. The reversal of 111011221222 is 222122110111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111011221196 and 111011221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2522982279 + ... + 2522982322.

It is an arithmetic number, because the mean of its divisors is an integer number (22706840709).

Almost surely, 2^111011221222 is an apocalyptic number.

111011221222 is a deficient number, since it is larger than the sum of its proper divisors (70643504450).

111011221222 is a wasteful number, since it uses less digits than its factorization.

111011221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045964614.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111011221222 its reverse (222122110111), we get a palindrome (333133331333).

Subtracting 111011221222 from its reverse (222122110111), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 111011 and 221222, that added together give a palindrome (332233).

The spelling of 111011221222 in words is "one hundred eleven billion, eleven million, two hundred twenty-one thousand, two hundred twenty-two".