1122211122212 has 24 divisors (see below), whose sum is σ = 1965399199680. Its totient is φ = 560668612320.

The previous prime is 1122211122181. The next prime is 1122211122259. The reversal of 1122211122212 is 2122211122211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59559089 + ... + 59577927.

It is an arithmetic number, because the mean of its divisors is an integer number (81891633320).

Almost surely, 2^{1122211122212} is an apocalyptic number.

It is an amenable number.

1122211122212 is a deficient number, since it is larger than the sum of its proper divisors (843188077468).

1122211122212 is a wasteful number, since it uses less digits than its factorization.

1122211122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29651 (or 29649 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 1122211122212 its reverse (2122211122211), we get a palindrome (3244422244423).

Subtracting 1122211122212 from its reverse (2122211122211), we obtain a palindrome (999999999999).

The spelling of 1122211122212 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".