20101210000101 has 128 divisors (see below), whose sum is σ = 32420052357120. Its totient is φ = 12415444335360.

The previous prime is 20101210000099. The next prime is 20101210000111. The reversal of 20101210000101 is 10100001210102.

It is a happy number.

It is not a de Polignac number, because 20101210000101 - 2¹ = 20101210000099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101210000111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6145278096 + ... + 6145281366.

It is an arithmetic number, because the mean of its divisors is an integer number (253281659040).

Almost surely, 2^{20101210000101} is an apocalyptic number.

It is an amenable number.

20101210000101 is a deficient number, since it is larger than the sum of its proper divisors (12318842357019).

20101210000101 is an equidigital number, since it uses as much as digits as its factorization.

20101210000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20101210000101 its reverse (10100001210102), we get a palindrome (30201211210203).

The spelling of 20101210000101 in words is "twenty trillion, one hundred one billion, two hundred ten million, one hundred one", and thus it is an aban number.