111222020222222 has 64 divisors (see below), whose sum is σ = 210351512577024. Its totient is φ = 42924622498560.

The previous prime is 111222020222219. The next prime is 111222020222231. The reversal of 111222020222222 is 222222020222111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154454903 + ... + 155173325.

It is an arithmetic number, because the mean of its divisors is an integer number (3286742384016).

Almost surely, 2^{111222020222222} is an apocalyptic number.

111222020222222 is a deficient number, since it is larger than the sum of its proper divisors (99129492354802).

111222020222222 is a wasteful number, since it uses less digits than its factorization.

111222020222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739233.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 111222020222222 its reverse (222222020222111), we get a palindrome (333444040444333).

The spelling of 111222020222222 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty million, two hundred twenty-two thousand, two hundred twenty-two".