10001212112 has 10 divisors (see below), whose sum is σ = 19377348498. Its totient is φ = 5000606048.

The previous prime is 10001212087. The next prime is 10001212159. The reversal of 10001212112 is 21121210001.

It can be written as a sum of positive squares in only one way, i.e., 7156483216 + 2844728896 = 84596^2 + 53336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10001212093 and 10001212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312537863 + ... + 312537894.

Almost surely, 2^10001212112 is an apocalyptic number.

It is an amenable number.

10001212112 is a deficient number, since it is larger than the sum of its proper divisors (9376136386).

10001212112 is an equidigital number, since it uses as much as digits as its factorization.

10001212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625075765 (or 625075759 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001212112 its reverse (21121210001), we get a palindrome (31122422113).

The spelling of 10001212112 in words is "ten billion, one million, two hundred twelve thousand, one hundred twelve".