221001113201 has 12 divisors (see below), whose sum is σ = 242938930500. Its totient is φ = 200893271040.

The previous prime is 221001113101. The next prime is 221001113227. The reversal of 221001113201 is 102311100122.

It can be written as a sum of positive squares in 2 ways, for example, as 53916375601 + 167084737600 = 232199^2 + 408760^2 .

It is not a de Polignac number, because 221001113201 - 2¹⁴ = 221001096817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001113101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1508945 + ... + 1648913.

It is an arithmetic number, because the mean of its divisors is an integer number (20244910875).

Almost surely, 2^221001113201 is an apocalyptic number.

It is an amenable number.

221001113201 is a deficient number, since it is larger than the sum of its proper divisors (21937817299).

221001113201 is a wasteful number, since it uses less digits than its factorization.

221001113201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153040 (or 153029 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221001113201 its reverse (102311100122), we get a palindrome (323312213323).

The spelling of 221001113201 in words is "two hundred twenty-one billion, one million, one hundred thirteen thousand, two hundred one".