1122122222212 has 12 divisors (see below), whose sum is σ = 1983156601356. Its totient is φ = 555506050400.

The previous prime is 1122122222201. The next prime is 1122122222279. The reversal of 1122122222212 is 2122222212211.

It can be written as a sum of positive squares in 2 ways, for example, as 513825177856 + 608297044356 = 716816^2 + 779934^2 .

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 3 ways as a sum of consecutive naturals, for example, 1388764723 + ... + 1388765530.

It is an arithmetic number, because the mean of its divisors is an integer number (165263050113).

Almost surely, 2^{1122122222212} is an apocalyptic number.

It is an amenable number.

1122122222212 is a deficient number, since it is larger than the sum of its proper divisors (861034379144).

1122122222212 is a wasteful number, since it uses less digits than its factorization.

1122122222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777530358 (or 2777530356 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

Adding to 1122122222212 its reverse (2122222212211), we get a palindrome (3244344434423).

The spelling of 1122122222212 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".