111123223321222 has 64 divisors (see below), whose sum is σ = 202401318962304. Its totient is φ = 44667570216960.

The previous prime is 111123223321217. The next prime is 111123223321301. The reversal of 111123223321222 is 222123322321111.

It is a super-2 number, since 2×111123223321222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2392759522 + ... + 2392805962.

It is an arithmetic number, because the mean of its divisors is an integer number (3162520608786).

Almost surely, 2^{111123223321222} is an apocalyptic number.

111123223321222 is a deficient number, since it is larger than the sum of its proper divisors (91278095641082).

111123223321222 is a wasteful number, since it uses less digits than its factorization.

111123223321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81073.

The product of its digits is 3456, while the sum is 28.

Adding to 111123223321222 its reverse (222123322321111), we get a palindrome (333246545642333).

The spelling of 111123223321222 in words is "one hundred eleven trillion, one hundred twenty-three billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-two".