222222220111 has 8 divisors (see below), whose sum is σ = 233098113024. Its totient is φ = 211447498680.

The previous prime is 222222220093. The next prime is 222222220163. The reversal of 222222220111 is 111022222222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222222220111 is a prime.

It is a super-2 number, since 2×222222220111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222220811) 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, 25288371 + ... + 25297156.

It is an arithmetic number, because the mean of its divisors is an integer number (29137264128).

Almost surely, 2^222222220111 is an apocalyptic number.

222222220111 is a deficient number, since it is larger than the sum of its proper divisors (10875892913).

222222220111 is a wasteful number, since it uses less digits than its factorization.

222222220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50585741.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222222220111 its reverse (111022222222), we get a palindrome (333244442333).

The spelling of 222222220111 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred eleven".