111221222110222 has 16 divisors (see below), whose sum is σ = 190665382802400. Its totient is φ = 47666130393888.

The previous prime is 111221222110133. The next prime is 111221222110253. The reversal of 111221222110222 is 222011222122111.

It is a junction number, because it is equal to n+sod(n) for n = 111221222110193 and 111221222110202.

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, 2384097 + ... + 15103852.

It is an arithmetic number, because the mean of its divisors is an integer number (11916586425150).

Almost surely, 2^{111221222110222} is an apocalyptic number.

111221222110222 is a deficient number, since it is larger than the sum of its proper divisors (79444160692178).

111221222110222 is a wasteful number, since it uses less digits than its factorization.

111221222110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942235.

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

Adding to 111221222110222 its reverse (222011222122111), we get a palindrome (333232444232333).

The spelling of 111221222110222 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-two".