212100202121101 has 16 divisors (see below), whose sum is σ = 245721574071424. Its totient is φ = 179309181993984.

The previous prime is 212100202121069. The next prime is 212100202121177. The reversal of 212100202121101 is 101121202001212.

212100202121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212100202121101 - 2⁵ = 212100202121069 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 (212100202124101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249476605 + ... + 250325341.

It is an arithmetic number, because the mean of its divisors is an integer number (15357598379464).

Almost surely, 2^{212100202121101} is an apocalyptic number.

It is an amenable number.

212100202121101 is a deficient number, since it is larger than the sum of its proper divisors (33621371950323).

212100202121101 is an equidigital number, since it uses as much as digits as its factorization.

212100202121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337860.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212100202121101 its reverse (101121202001212), we get a palindrome (313221404122313).

The spelling of 212100202121101 in words is "two hundred twelve trillion, one hundred billion, two hundred two million, one hundred twenty-one thousand, one hundred one".