3223111221 has 24 divisors (see below), whose sum is σ = 5090479680. Its totient is φ = 1948924800.

The previous prime is 3223111163. The next prime is 3223111223. The reversal of 3223111221 is 1221113223.

3223111221 is a `hidden beast` number, since 322 + 311 + 12 + 21 = 666.

It is not a de Polignac number, because 3223111221 - 2⁷ = 3223111093 is a prime.

It is a super-2 number, since 2×3223111221² = 20776891885872221682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3223111194 and 3223111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223111223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6381 + ... + 80541.

It is an arithmetic number, because the mean of its divisors is an integer number (212103320).

Almost surely, 2^3223111221 is an apocalyptic number.

It is an amenable number.

3223111221 is a deficient number, since it is larger than the sum of its proper divisors (1867368459).

3223111221 is a wasteful number, since it uses less digits than its factorization.

3223111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74617 (or 74614 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3223111221 is about 56772.4512505846. The cubic root of 3223111221 is about 1477.1516957498.

Adding to 3223111221 its reverse (1221113223), we get a palindrome (4444224444).

The spelling of 3223111221 in words is "three billion, two hundred twenty-three million, one hundred eleven thousand, two hundred twenty-one".