1111222212 has 12 divisors (see below), whose sum is σ = 2592851856. Its totient is φ = 370407400.

The previous prime is 1111222199. The next prime is 1111222213. The reversal of 1111222212 is 2122221111.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 1111222191 and 1111222200.

It is not an unprimeable number, because it can be changed into a prime (1111222213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46300914 + ... + 46300937.

It is an arithmetic number, because the mean of its divisors is an integer number (216070988).

Almost surely, 2^1111222212 is an apocalyptic number.

1111222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111222212 is an abundant number, since it is smaller than the sum of its proper divisors (1481629644).

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

1111222212 is a wasteful number, since it uses less digits than its factorization.

1111222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92601858 (or 92601856 counting only the distinct ones).

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

The square root of 1111222212 is about 33334.9998050097. Note that the first 3 decimals coincide. The cubic root of 1111222212 is about 1035.7786891301.

Adding to 1111222212 its reverse (2122221111), we get a palindrome (3233443323).

The spelling of 1111222212 in words is "one billion, one hundred eleven million, two hundred twenty-two thousand, two hundred twelve".