321220010033 has 8 divisors (see below), whose sum is σ = 345933647976. Its totient is φ = 296507001600.

The previous prime is 321220010011. The next prime is 321220010063. The reversal of 321220010033 is 330010022123.

It can be written as a sum of positive squares in 4 ways, for example, as 15447506944 + 305772503089 = 124288^2 + 552967^2 .

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 321220010033 - 2¹⁶ = 321219944497 is a prime.

It is a super-2 number, since 2×321220010033² (a number of 24 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 = 321220009993 and 321220010020.

It is not an unprimeable number, because it can be changed into a prime (321220010063) 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, 1865753 + ... + 2030633.

It is an arithmetic number, because the mean of its divisors is an integer number (43241705997).

Almost surely, 2^321220010033 is an apocalyptic number.

It is an amenable number.

321220010033 is a deficient number, since it is larger than the sum of its proper divisors (24713637943).

321220010033 is a wasteful number, since it uses less digits than its factorization.

321220010033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314755.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 321220010033 its reverse (330010022123), we get a palindrome (651230032156).

The spelling of 321220010033 in words is "three hundred twenty-one billion, two hundred twenty million, ten thousand, thirty-three".