221001313332313 has 16 divisors (see below), whose sum is σ = 229296198574080. Its totient is φ = 212779365019200.

The previous prime is 221001313332257. The next prime is 221001313332343. The reversal of 221001313332313 is 313233313100122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221001313332313 - 2⁹ = 221001313331801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001313332343) 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, 183715848 + ... + 184914886.

It is an arithmetic number, because the mean of its divisors is an integer number (14331012410880).

Almost surely, 2^{221001313332313} is an apocalyptic number.

It is an amenable number.

221001313332313 is a deficient number, since it is larger than the sum of its proper divisors (8294885241767).

221001313332313 is a wasteful number, since it uses less digits than its factorization.

221001313332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229448.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 221001313332313 its reverse (313233313100122), we get a palindrome (534234626432435).

The spelling of 221001313332313 in words is "two hundred twenty-one trillion, one billion, three hundred thirteen million, three hundred thirty-two thousand, three hundred thirteen".