221210101201 has 4 divisors (see below), whose sum is σ = 230827931712. Its totient is φ = 211592270692.

The previous prime is 221210101199. The next prime is 221210101213. The reversal of 221210101201 is 102101012122.

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 221210101201 - 2¹ = 221210101199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221210101241) 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, 4808915221 + ... + 4808915266.

It is an arithmetic number, because the mean of its divisors is an integer number (57706982928).

Almost surely, 2^221210101201 is an apocalyptic number.

It is an amenable number.

221210101201 is a deficient number, since it is larger than the sum of its proper divisors (9617830511).

221210101201 is an equidigital number, since it uses as much as digits as its factorization.

221210101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9617830510.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221210101201 its reverse (102101012122), we get a palindrome (323311113323).

The spelling of 221210101201 in words is "two hundred twenty-one billion, two hundred ten million, one hundred one thousand, two hundred one".