1122212212 has 48 divisors (see below), whose sum is σ = 2196492480. Its totient is φ = 497376000.

The previous prime is 1122212209. The next prime is 1122212213. The reversal of 1122212212 is 2122122211.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122212213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295864 + ... + 299632.

It is an arithmetic number, because the mean of its divisors is an integer number (45760260).

Almost surely, 2^1122212212 is an apocalyptic number.

It is an amenable number.

1122212212 is a deficient number, since it is larger than the sum of its proper divisors (1074280268).

1122212212 is a wasteful number, since it uses less digits than its factorization.

1122212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3950 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 1122212212 is about 33499.4359952522. The cubic root of 1122212212 is about 1039.1821146034.

Adding to 1122212212 its reverse (2122122211), we get a palindrome (3244334423).

Subtracting 1122212212 from its reverse (2122122211), we obtain a palindrome (999909999).

The spelling of 1122212212 in words is "one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".