111222101222 has 16 divisors (see below), whose sum is σ = 167736273120. Its totient is φ = 55310821632.

The previous prime is 111222101209. The next prime is 111222101233. The reversal of 111222101222 is 222101222111.

It is a self number, because there is not a number n which added to its sum of digits gives 111222101222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72143 + ... + 477125.

It is an arithmetic number, because the mean of its divisors is an integer number (10483517070).

Almost surely, 2^111222101222 is an apocalyptic number.

111222101222 is a deficient number, since it is larger than the sum of its proper divisors (56514171898).

111222101222 is a wasteful number, since it uses less digits than its factorization.

111222101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405727.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111222101222 its reverse (222101222111), we get a palindrome (333323323333).

It can be divided in two parts, 111 and 222101222, that multiplied together give a palindrome (24653235642).

The spelling of 111222101222 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-two".