221001130313 has 16 divisors (see below), whose sum is σ = 235530997776. Its totient is φ = 206643056640.

The previous prime is 221001130309. The next prime is 221001130319. The reversal of 221001130313 is 313031100122.

It can be written as a sum of positive squares in 8 ways, for example, as 15309855289 + 205691275024 = 123733^2 + 453532^2 .

It is not a de Polignac number, because 221001130313 - 2² = 221001130309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221001130291 and 221001130300.

It is not an unprimeable number, because it can be changed into a prime (221001130319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3975095 + ... + 4030307.

It is an arithmetic number, because the mean of its divisors is an integer number (14720687361).

Almost surely, 2^221001130313 is an apocalyptic number.

It is an amenable number.

221001130313 is a deficient number, since it is larger than the sum of its proper divisors (14529867463).

221001130313 is a wasteful number, since it uses less digits than its factorization.

221001130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56764.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 221001130313 its reverse (313031100122), we get a palindrome (534032230435).

The spelling of 221001130313 in words is "two hundred twenty-one billion, one million, one hundred thirty thousand, three hundred thirteen".