10001212231312 has 20 divisors (see below), whose sum is σ = 19377401848380. Its totient is φ = 5000592399488.

The previous prime is 10001212231301. The next prime is 10001212231327. The reversal of 10001212231312 is 21313221210001.

It can be written as a sum of positive squares in 2 ways, for example, as 7831848519936 + 2169363711376 = 2798544^2 + 1472876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10001212231312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7819578 + ... + 9008230.

It is an arithmetic number, because the mean of its divisors is an integer number (968870092419).

Almost surely, 2^{10001212231312} is an apocalyptic number.

It is an amenable number.

10001212231312 is a deficient number, since it is larger than the sum of its proper divisors (9376189617068).

10001212231312 is a wasteful number, since it uses less digits than its factorization.

10001212231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714530 (or 1714524 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10001212231312 its reverse (21313221210001), we get a palindrome (31314433441313).

The spelling of 10001212231312 in words is "ten trillion, one billion, two hundred twelve million, two hundred thirty-one thousand, three hundred twelve".