111122201212222 has 16 divisors (see below), whose sum is σ = 173087772161472. Its totient is φ = 53463404522880.

The previous prime is 111122201212201. The next prime is 111122201212331. The reversal of 111122201212222 is 222212102221111.

It is a junction number, because it is equal to n+sod(n) for n = 111122201212193 and 111122201212202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9281835078 + ... + 9281847049.

It is an arithmetic number, because the mean of its divisors is an integer number (10817985760092).

Almost surely, 2^{111122201212222} is an apocalyptic number.

111122201212222 is a deficient number, since it is larger than the sum of its proper divisors (61965570949250).

111122201212222 is a wasteful number, since it uses less digits than its factorization.

111122201212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18563682243.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111122201212222 its reverse (222212102221111), we get a palindrome (333334303433333).

The spelling of 111122201212222 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".