111012221222 has 32 divisors (see below), whose sum is σ = 198607652352. Its totient is φ = 45501977664.

The previous prime is 111012221171. The next prime is 111012221261. The reversal of 111012221222 is 222122210111.

It is a self number, because there is not a number n which added to its sum of digits gives 111012221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2962133 + ... + 2999375.

It is an arithmetic number, because the mean of its divisors is an integer number (6206489136).

Almost surely, 2^111012221222 is an apocalyptic number.

111012221222 is a deficient number, since it is larger than the sum of its proper divisors (87595431130).

111012221222 is a wasteful number, since it uses less digits than its factorization.

111012221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46532.

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

Adding to 111012221222 its reverse (222122210111), we get a palindrome (333134431333).

The spelling of 111012221222 in words is "one hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".