221200301101 has 4 divisors (see below), whose sum is σ = 238215708892. Its totient is φ = 204184893312.

The previous prime is 221200301087. The next prime is 221200301141. The reversal of 221200301101 is 101103002122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28348456900 + 192851844201 = 168370^2 + 439149^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200301101 - 2⁷ = 221200300973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 17015407777 = 221200301101 / (2 + 2 + 1 + 2 + 0 + 0 + 3 + 0 + 1 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200301141) 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, 8507703876 + ... + 8507703901.

It is an arithmetic number, because the mean of its divisors is an integer number (59553927223).

Almost surely, 2^221200301101 is an apocalyptic number.

It is an amenable number.

221200301101 is a deficient number, since it is larger than the sum of its proper divisors (17015407791).

221200301101 is a wasteful number, since it uses less digits than its factorization.

221200301101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17015407790.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 221200301101 its reverse (101103002122), we get a palindrome (322303303223).

The spelling of 221200301101 in words is "two hundred twenty-one billion, two hundred million, three hundred one thousand, one hundred one".