10121212312 has 16 divisors (see below), whose sum is σ = 19237236840. Its totient is φ = 4991282496.

The previous prime is 10121212279. The next prime is 10121212319. The reversal of 10121212312 is 21321212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121212319) 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, 8664838 + ... + 8666005.

Almost surely, 2^10121212312 is an apocalyptic number.

It is an amenable number.

10121212312 is a deficient number, since it is larger than the sum of its proper divisors (9116024528).

10121212312 is a wasteful number, since it uses less digits than its factorization.

10121212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330922 (or 17330918 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10121212312 its reverse (21321212101), we get a palindrome (31442424413).

The spelling of 10121212312 in words is "ten billion, one hundred twenty-one million, two hundred twelve thousand, three hundred twelve".