221102110201 has 4 divisors (see below), whose sum is σ = 252688125952. Its totient is φ = 189516094452.

The previous prime is 221102110193. The next prime is 221102110219. The reversal of 221102110201 is 102011201122.

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 221102110201 - 2³ = 221102110193 is a prime.

It is a super-2 number, since 2×221102110201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221102110241) 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, 15793007865 + ... + 15793007878.

It is an arithmetic number, because the mean of its divisors is an integer number (63172031488).

Almost surely, 2^221102110201 is an apocalyptic number.

It is an amenable number.

221102110201 is a deficient number, since it is larger than the sum of its proper divisors (31586015751).

221102110201 is an equidigital number, since it uses as much as digits as its factorization.

221102110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31586015750.

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

Adding to 221102110201 its reverse (102011201122), we get a palindrome (323113311323).

It can be divided in two parts, 2211021 and 10201, that added together give a palindrome (2221222).

The spelling of 221102110201 in words is "two hundred twenty-one billion, one hundred two million, one hundred ten thousand, two hundred one".