212100200222201 has 4 divisors (see below), whose sum is σ = 212100412405392. Its totient is φ = 212099988039012.

The previous prime is 212100200222189. The next prime is 212100200222237. The reversal of 212100200222201 is 102222002001212.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212100200222201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212100200222201.

It is not an unprimeable number, because it can be changed into a prime (212100200222101) 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, 104585051 + ... + 106593776.

It is an arithmetic number, because the mean of its divisors is an integer number (53025103101348).

Almost surely, 2^{212100200222201} is an apocalyptic number.

It is an amenable number.

212100200222201 is a deficient number, since it is larger than the sum of its proper divisors (212183191).

212100200222201 is a wasteful number, since it uses less digits than its factorization.

212100200222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212183190.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212100200222201 its reverse (102222002001212), we get a palindrome (314322202223413).

The spelling of 212100200222201 in words is "two hundred twelve trillion, one hundred billion, two hundred million, two hundred twenty-two thousand, two hundred one".