222222222222 has 256 divisors, whose sum is σ = 618995091456. Its totient is φ = 51321600000.

The previous prime is 222222222169. The next prime is 222222222301.

222222222222 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

222222222222 is a modest number, since divided by 2222222 gives 22222 as remainder.

222222222222 is a nontrivial repdigit in base 10.

It is a plaindrome in base 10.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222222222192 and 222222222201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22439472 + ... + 22449372.

It is an arithmetic number, because the mean of its divisors is an integer number (2417949576).

Almost surely, 2^222222222222 is an apocalyptic number.

222222222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309497545728).

222222222222 is an abundant number, since it is smaller than the sum of its proper divisors (396772869234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222222222222 is a wasteful number, since it uses less digits than its factorization.

222222222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10075.

The product of its digits is 4096, while the sum is 24.

It can be divided in two parts, 22222222222 and 2, that multiplied together give a palindrome (44444444444).

The spelling of 222222222222 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".