20121110000212 has 24 divisors (see below), whose sum is σ = 37922640968072. Its totient is φ = 9286154928000.

The previous prime is 20121110000207. The next prime is 20121110000219. The reversal of 20121110000212 is 21200001112102.

It can be written as a sum of positive squares in 4 ways, for example, as 1726927143876 + 18394182856336 = 1314126^2 + 4288844^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20121110000192 and 20121110000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121110000219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9696039 + ... + 11586862.

Almost surely, 2^{20121110000212} is an apocalyptic number.

It is an amenable number.

20121110000212 is a deficient number, since it is larger than the sum of its proper divisors (17801530967860).

20121110000212 is a wasteful number, since it uses less digits than its factorization.

20121110000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21301099 (or 21301097 counting only the distinct ones).

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

Adding to 20121110000212 its reverse (21200001112102), we get a palindrome (41321111112314).

The spelling of 20121110000212 in words is "twenty trillion, one hundred twenty-one billion, one hundred ten million, two hundred twelve", and thus it is an aban number.