1111212222 has 8 divisors (see below), whose sum is σ = 2222424456. Its totient is φ = 370404072.

The previous prime is 1111212203. The next prime is 1111212331. The reversal of 1111212222 is 2222121111.

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

1111212222 is an admirable number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92601013 + ... + 92601024.

It is an arithmetic number, because the mean of its divisors is an integer number (277803057).

Almost surely, 2^1111212222 is an apocalyptic number.

1111212222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1111212222 is a wasteful number, since it uses less digits than its factorization.

1111212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185202042.

The product of its digits is 32, while the sum is 15.

The square root of 1111212222 is about 33334.8499621642. The cubic root of 1111212222 is about 1035.7755852024.

Adding to 1111212222 its reverse (2222121111), we get a palindrome (3333333333).

The spelling of 1111212222 in words is "one billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-two".