321220233011 has 16 divisors (see below), whose sum is σ = 345787833600. Its totient is φ = 297796537248.

The previous prime is 321220232981. The next prime is 321220233043. The reversal of 321220233011 is 110332022123.

It is not a de Polignac number, because 321220233011 - 2⁶ = 321220232947 is a prime.

It is a super-2 number, since 2×321220233011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321220233091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109431 + ... + 2256576.

It is an arithmetic number, because the mean of its divisors is an integer number (21611739600).

Almost surely, 2^321220233011 is an apocalyptic number.

321220233011 is a deficient number, since it is larger than the sum of its proper divisors (24567600589).

321220233011 is a wasteful number, since it uses less digits than its factorization.

321220233011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366138.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 321220233011 its reverse (110332022123), we get a palindrome (431552255134).

The spelling of 321220233011 in words is "three hundred twenty-one billion, two hundred twenty million, two hundred thirty-three thousand, eleven".