1212112012 has 6 divisors (see below), whose sum is σ = 2121196028. Its totient is φ = 606056004.

The previous prime is 1212111977. The next prime is 1212112037. The reversal of 1212112012 is 2102112121.

It is a junction number, because it is equal to n+sod(n) for n = 1212111983 and 1212112001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151513998 + ... + 151514005.

Almost surely, 2^1212112012 is an apocalyptic number.

It is an amenable number.

1212112012 is a deficient number, since it is larger than the sum of its proper divisors (909084016).

1212112012 is a wasteful number, since it uses less digits than its factorization.

1212112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303028007 (or 303028005 counting only the distinct ones).

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

The square root of 1212112012 is about 34815.3990642072. The cubic root of 1212112012 is about 1066.2218666709.

Adding to 1212112012 its reverse (2102112121), we get a palindrome (3314224133).

The spelling of 1212112012 in words is "one billion, two hundred twelve million, one hundred twelve thousand, twelve".