1121121212 has 12 divisors (see below), whose sum is σ = 1962948960. Its totient is φ = 560278656.

The previous prime is 1121121103. The next prime is 1121121263. The reversal of 1121121212 is 2121211211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61412 + ... + 77547.

It is an arithmetic number, because the mean of its divisors is an integer number (163579080).

Almost surely, 2^1121121212 is an apocalyptic number.

It is an amenable number.

1121121212 is a deficient number, since it is larger than the sum of its proper divisors (841827748).

1121121212 is a wasteful number, since it uses less digits than its factorization.

1121121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140980 (or 140978 counting only the distinct ones).

The product of its digits is 16, while the sum is 14.

The square root of 1121121212 is about 33483.1481793454. The cubic root of 1121121212 is about 1038.8452456707.

Adding to 1121121212 its reverse (2121211211), we get a palindrome (3242332423).

It can be divided in two parts, 11211 and 21212, that added together give a palindrome (32423).

The spelling of 1121121212 in words is "one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".