221331310033 has 8 divisors (see below), whose sum is σ = 221682560960. Its totient is φ = 220980253680.

The previous prime is 221331310027. The next prime is 221331310073. The reversal of 221331310033 is 330013133122.

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 221331310033 - 2⁵ = 221331310001 is a prime.

It is a super-2 number, since 2×221331310033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221331309986 and 221331310013.

It is not an unprimeable number, because it can be changed into a prime (221331310073) 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, 2318908 + ... + 2412466.

It is an arithmetic number, because the mean of its divisors is an integer number (27710320120).

Almost surely, 2^221331310033 is an apocalyptic number.

It is an amenable number.

221331310033 is a deficient number, since it is larger than the sum of its proper divisors (351250927).

221331310033 is an equidigital number, since it uses as much as digits as its factorization.

221331310033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97287.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 221331310033 its reverse (330013133122), we get a palindrome (551344443155).

The spelling of 221331310033 in words is "two hundred twenty-one billion, three hundred thirty-one million, three hundred ten thousand, thirty-three".