221331313033 has 8 divisors (see below), whose sum is σ = 225166557600. Its totient is φ = 217498864128.

The previous prime is 221331313019. The next prime is 221331313037. The reversal of 221331313033 is 330313133122.

221331313033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221331313033 - 2⁵ = 221331313001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221331312989 and 221331313007.

It is not an unprimeable number, because it can be changed into a prime (221331313037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538891 + ... + 856192.

It is an arithmetic number, because the mean of its divisors is an integer number (28145819700).

Almost surely, 2^221331313033 is an apocalyptic number.

It is an amenable number.

221331313033 is a deficient number, since it is larger than the sum of its proper divisors (3835244567).

221331313033 is a wasteful number, since it uses less digits than its factorization.

221331313033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397831.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 221331313033 its reverse (330313133122), we get a palindrome (551644446155).

The spelling of 221331313033 in words is "two hundred twenty-one billion, three hundred thirty-one million, three hundred thirteen thousand, thirty-three".