1111211212 has 12 divisors (see below), whose sum is σ = 2011675680. Its totient is φ = 536446736.

The previous prime is 1111211209. The next prime is 1111211243. The reversal of 1111211212 is 2121121111.

It is a happy number.

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 = 1111211192 and 1111211201.

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, 4789588 + ... + 4789819.

It is an arithmetic number, because the mean of its divisors is an integer number (167639640).

Almost surely, 2^1111211212 is an apocalyptic number.

It is an amenable number.

1111211212 is a deficient number, since it is larger than the sum of its proper divisors (900464468).

1111211212 is a wasteful number, since it uses less digits than its factorization.

1111211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579440 (or 9579438 counting only the distinct ones).

The product of its digits is 8, while the sum is 13.

The square root of 1111211212 is about 33334.8348128501. The cubic root of 1111211212 is about 1035.7752713909.

Adding to 1111211212 its reverse (2121121111), we get a palindrome (3232332323).

The spelling of 1111211212 in words is "one billion, one hundred eleven million, two hundred eleven thousand, two hundred twelve".