20010211012101 has 4 divisors (see below), whose sum is σ = 26680281349472. Its totient is φ = 13340140674732.

The previous prime is 20010211012073. The next prime is 20010211012139. The reversal of 20010211012101 is 10121011201002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20010211012101 - 2⁵ = 20010211012069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010211092101) 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, 3335035168681 + ... + 3335035168686.

It is an arithmetic number, because the mean of its divisors is an integer number (6670070337368).

Almost surely, 2^{20010211012101} is an apocalyptic number.

It is an amenable number.

20010211012101 is a deficient number, since it is larger than the sum of its proper divisors (6670070337371).

20010211012101 is an equidigital number, since it uses as much as digits as its factorization.

20010211012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670070337370.

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

Adding to 20010211012101 its reverse (10121011201002), we get a palindrome (30131222213103).

The spelling of 20010211012101 in words is "twenty trillion, ten billion, two hundred eleven million, twelve thousand, one hundred one".