1122111122212 has 6 divisors (see below), whose sum is σ = 1963694463878. Its totient is φ = 561055561104.

The previous prime is 1122111122189. The next prime is 1122111122267. The reversal of 1122111122212 is 2122211112211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1030578250276 + 91532871936 = 1015174^2 + 302544^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1122111122212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140263890273 + ... + 140263890280.

Almost surely, 2^{1122111122212} is an apocalyptic number.

It is an amenable number.

1122111122212 is a deficient number, since it is larger than the sum of its proper divisors (841583341666).

1122111122212 is a wasteful number, since it uses less digits than its factorization.

1122111122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280527780557 (or 280527780555 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 1122111122212 its reverse (2122211112211), we get a palindrome (3244322234423).

The spelling of 1122111122212 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twelve".