111122222222 has 16 divisors (see below), whose sum is σ = 183636727344. Its totient is φ = 50010000000.

The previous prime is 111122222221. The next prime is 111122222231. The reversal of 111122222222 is 222222221111.

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

111122222222 is a modest number, since divided by 222222 gives 111122 as remainder.

It is a plaindrome 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 = 111122222194 and 111122222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122222221) 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, 25002779 + ... + 25007222.

It is an arithmetic number, because the mean of its divisors is an integer number (11477295459).

Almost surely, 2^111122222222 is an apocalyptic number.

111122222222 is a deficient number, since it is larger than the sum of its proper divisors (72514505122).

111122222222 is a wasteful number, since it uses less digits than its factorization.

111122222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50010115.

The product of its digits is 256, while the sum is 20.

Adding to 111122222222 its reverse (222222221111), we get a palindrome (333344443333).

It can be divided in two parts, 1111 and 22222222, that multiplied together give a palindrome (24688888642).

The spelling of 111122222222 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".