10121212012 has 6 divisors (see below), whose sum is σ = 17712121028. Its totient is φ = 5060606004.

The previous prime is 10121212001. The next prime is 10121212051. The reversal of 10121212012 is 21021212101.

It is a junction number, because it is equal to n+sod(n) for n = 10121211983 and 10121212001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265151498 + ... + 1265151505.

Almost surely, 2^10121212012 is an apocalyptic number.

It is an amenable number.

10121212012 is a deficient number, since it is larger than the sum of its proper divisors (7590909016).

10121212012 is a wasteful number, since it uses less digits than its factorization.

10121212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530303007 (or 2530303005 counting only the distinct ones).

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

Adding to 10121212012 its reverse (21021212101), we get a palindrome (31142424113).

The spelling of 10121212012 in words is "ten billion, one hundred twenty-one million, two hundred twelve thousand, twelve".