1121212012 has 12 divisors (see below), whose sum is σ = 1970264296. Its totient is φ = 558279360.

The previous prime is 1121211991. The next prime is 1121212013. The reversal of 1121212012 is 2102121211.

It is a junction number, because it is equal to n+sod(n) for n = 1121211983 and 1121212001.

It is not an unprimeable number, because it can be changed into a prime (1121212013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580578 + ... + 582505.

Almost surely, 2^1121212012 is an apocalyptic number.

It is an amenable number.

1121212012 is a deficient number, since it is larger than the sum of its proper divisors (849052284).

1121212012 is a wasteful number, since it uses less digits than its factorization.

1121212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163328 (or 1163326 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1121212012 is about 33484.5040578474. The cubic root of 1121212012 is about 1038.8732903938.

Adding to 1121212012 its reverse (2102121211), we get a palindrome (3223333223).

The spelling of 1121212012 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, twelve".