2112100001212 has 12 divisors (see below), whose sum is σ = 3698150522976. Its totient is φ = 1055485566080.

The previous prime is 2112100001203. The next prime is 2112100001213. The reversal of 2112100001212 is 2121000012112.

It is a junction number, because it is equal to n+sod(n) for n = 2112100001192 and 2112100001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112100001213) 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, 141100213 + ... + 141115180.

It is an arithmetic number, because the mean of its divisors is an integer number (308179210248).

Almost surely, 2^{2112100001212} is an apocalyptic number.

It is an amenable number.

2112100001212 is a deficient number, since it is larger than the sum of its proper divisors (1586050521764).

2112100001212 is a wasteful number, since it uses less digits than its factorization.

2112100001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282217268 (or 282217266 counting only the distinct ones).

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

Adding to 2112100001212 its reverse (2121000012112), we get a palindrome (4233100013324).

The spelling of 2112100001212 in words is "two trillion, one hundred twelve billion, one hundred million, one thousand, two hundred twelve".