222112110220111 has 16 divisors (see below), whose sum is σ = 227259472442400. Its totient is φ = 217012956438528.

The previous prime is 222112110220109. The next prime is 222112110220139. The reversal of 222112110220111 is 111022011211222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222112110220111 - 2¹ = 222112110220109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112110220181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3049335 + ... + 21296071.

It is an arithmetic number, because the mean of its divisors is an integer number (14203717027650).

Almost surely, 2^{222112110220111} is an apocalyptic number.

222112110220111 is a deficient number, since it is larger than the sum of its proper divisors (5147362222289).

222112110220111 is a wasteful number, since it uses less digits than its factorization.

222112110220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18248058.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222112110220111 its reverse (111022011211222), we get a palindrome (333134121431333).

The spelling of 222112110220111 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred ten million, two hundred twenty thousand, one hundred eleven".