221333030331311 has 8 divisors (see below), whose sum is σ = 224365492086720. Its totient is φ = 218300582155392.

The previous prime is 221333030331253. The next prime is 221333030331337. The reversal of 221333030331311 is 113133030333122.

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 221333030331311 - 2⁶ = 221333030331247 is a prime.

It is a super-2 number, since 2×221333030331311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221333030331011) 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, 31926986 + ... + 38236088.

It is an arithmetic number, because the mean of its divisors is an integer number (28045686510840).

Almost surely, 2^{221333030331311} is an apocalyptic number.

221333030331311 is a deficient number, since it is larger than the sum of its proper divisors (3032461755409).

221333030331311 is an equidigital number, since it uses as much as digits as its factorization.

221333030331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789745.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 221333030331311 its reverse (113133030333122), we get a palindrome (334466060664433).

The spelling of 221333030331311 in words is "two hundred twenty-one trillion, three hundred thirty-three billion, thirty million, three hundred thirty-one thousand, three hundred eleven".