20100102101212 has 96 divisors (see below), whose sum is σ = 40589063051264. Its totient is φ = 8531432179200.

The previous prime is 20100102101179. The next prime is 20100102101213. The reversal of 20100102101212 is 21210120100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100102101192 and 20100102101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100102101213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3417800512 + ... + 3417806392.

Almost surely, 2^{20100102101212} is an apocalyptic number.

It is an amenable number.

20100102101212 is an abundant number, since it is smaller than the sum of its proper divisors (20488960950052).

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

20100102101212 is a wasteful number, since it uses less digits than its factorization.

20100102101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8739 (or 8737 counting only the distinct ones).

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

Adding to 20100102101212 its reverse (21210120100102), we get a palindrome (41310222201314).

The spelling of 20100102101212 in words is "twenty trillion, one hundred billion, one hundred two million, one hundred one thousand, two hundred twelve".