222220122111111 has 8 divisors (see below), whose sum is σ = 296293580323200. Its totient is φ = 148146705986552.

The previous prime is 222220122111107. The next prime is 222220122111131. The reversal of 222220122111111 is 111111221022222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222220122111111 - 2² = 222220122111107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220122111101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119840 + ... + 21694538.

It is an arithmetic number, because the mean of its divisors is an integer number (37036697540400).

Almost surely, 2^{222220122111111} is an apocalyptic number.

222220122111111 is a deficient number, since it is larger than the sum of its proper divisors (74073458212089).

222220122111111 is a wasteful number, since it uses less digits than its factorization.

222220122111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043765.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 222220122111111 its reverse (111111221022222), we get a palindrome (333331343133333).

The spelling of 222220122111111 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, one hundred eleven".