221200102221211 has 4 divisors (see below), whose sum is σ = 221233102392352. Its totient is φ = 221167102050072.

The previous prime is 221200102221169. The next prime is 221200102221271. The reversal of 221200102221211 is 112122201002122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221200102221211 - 2²⁹ = 221199565350299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221200102221271) 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, 16500075516 + ... + 16500088921.

It is an arithmetic number, because the mean of its divisors is an integer number (55308275598088).

Almost surely, 2^{221200102221211} is an apocalyptic number.

221200102221211 is a deficient number, since it is larger than the sum of its proper divisors (33000171141).

221200102221211 is an equidigital number, since it uses as much as digits as its factorization.

221200102221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33000171140.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221200102221211 its reverse (112122201002122), we get a palindrome (333322303223333).

The spelling of 221200102221211 in words is "two hundred twenty-one trillion, two hundred billion, one hundred two million, two hundred twenty-one thousand, two hundred eleven".