221210002201211 has 4 divisors (see below), whose sum is σ = 223239451762800. Its totient is φ = 219180552639624.

The previous prime is 221210002201183. The next prime is 221210002201241. The reversal of 221210002201211 is 112102200012122.

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 221210002201211 - 2³⁸ = 220935124294267 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 221210002201211.

It is not an unprimeable number, because it can be changed into a prime (221210002201241) 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, 1014724780631 + ... + 1014724780848.

It is an arithmetic number, because the mean of its divisors is an integer number (55809862940700).

Almost surely, 2^{221210002201211} is an apocalyptic number.

221210002201211 is a deficient number, since it is larger than the sum of its proper divisors (2029449561589).

221210002201211 is a wasteful number, since it uses less digits than its factorization.

221210002201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029449561588.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221210002201211 its reverse (112102200012122), we get a palindrome (333312202213333).

The spelling of 221210002201211 in words is "two hundred twenty-one trillion, two hundred ten billion, two million, two hundred one thousand, two hundred eleven".