20100212101101 has 48 divisors (see below), whose sum is σ = 30027868686144. Its totient is φ = 11948608320000.

The previous prime is 20100212101093. The next prime is 20100212101133. The reversal of 20100212101101 is 10110121200102.

It is not a de Polignac number, because 20100212101101 - 2³ = 20100212101093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100282101101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1361061 + ... + 6484821.

It is an arithmetic number, because the mean of its divisors is an integer number (625580597628).

Almost surely, 2^{20100212101101} is an apocalyptic number.

It is an amenable number.

20100212101101 is a deficient number, since it is larger than the sum of its proper divisors (9927656585043).

20100212101101 is a wasteful number, since it uses less digits than its factorization.

20100212101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123994 (or 5123983 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20100212101101 its reverse (10110121200102), we get a palindrome (30210333301203).

Subtracting from 20100212101101 its reverse (10110121200102), we obtain a palindrome (9990090900999).

The spelling of 20100212101101 in words is "twenty trillion, one hundred billion, two hundred twelve million, one hundred one thousand, one hundred one".