10001212100012 has 18 divisors (see below), whose sum is σ = 20359610346852. Its totient is φ = 4286233757064.

The previous prime is 10001212099961. The next prime is 10001212100021. The reversal of 10001212100012 is 21000121210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001212099966 and 10001212100002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25513295978 + ... + 25513296369.

It is an arithmetic number, because the mean of its divisors is an integer number (1131089463714).

Almost surely, 2^{10001212100012} is an apocalyptic number.

It is an amenable number.

10001212100012 is an abundant number, since it is smaller than the sum of its proper divisors (10358398246840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001212100012 is a wasteful number, since it uses less digits than its factorization.

10001212100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51026592365 (or 51026592356 counting only the distinct ones).

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

Adding to 10001212100012 its reverse (21000121210001), we get a palindrome (31001333310013).

It can be divided in two parts, 1000121210001 and 2, that multiplied together give a palindrome (2000242420002).

The spelling of 10001212100012 in words is "ten trillion, one billion, two hundred twelve million, one hundred thousand, twelve".