221330332013 has 8 divisors (see below), whose sum is σ = 254411084928. Its totient is φ = 188615112624.

The previous prime is 221330332001. The next prime is 221330332031. The reversal of 221330332013 is 310233033122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221330332013 - 2¹⁰ = 221330330989 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221330332013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330332063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91382081 + ... + 91384502.

It is an arithmetic number, because the mean of its divisors is an integer number (31801385616).

Almost surely, 2^221330332013 is an apocalyptic number.

It is an amenable number.

221330332013 is a deficient number, since it is larger than the sum of its proper divisors (33080752915).

221330332013 is a wasteful number, since it uses less digits than its factorization.

221330332013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182766763.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 221330332013 its reverse (310233033122), we get a palindrome (531563365135).

The spelling of 221330332013 in words is "two hundred twenty-one billion, three hundred thirty million, three hundred thirty-two thousand, thirteen".