221102222200201 has 4 divisors (see below), whose sum is σ = 221131379826432. Its totient is φ = 221073064573972.

The previous prime is 221102222200187. The next prime is 221102222200229. The reversal of 221102222200201 is 102002222201122.

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 not a de Polignac number, because 221102222200201 - 2⁷ = 221102222200073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221102222200231) 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, 14578801741 + ... + 14578816906.

It is an arithmetic number, because the mean of its divisors is an integer number (55282844956608).

Almost surely, 2^{221102222200201} is an apocalyptic number.

It is an amenable number.

221102222200201 is a deficient number, since it is larger than the sum of its proper divisors (29157626231).

221102222200201 is an equidigital number, since it uses as much as digits as its factorization.

221102222200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29157626230.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221102222200201 its reverse (102002222201122), we get a palindrome (323104444401323).

The spelling of 221102222200201 in words is "two hundred twenty-one trillion, one hundred two billion, two hundred twenty-two million, two hundred thousand, two hundred one".