3221221223 has 12 divisors (see below), whose sum is σ = 3590559504. Its totient is φ = 2887130400.

The previous prime is 3221221219. The next prime is 3221221229.

It is a happy number.

3221221223 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3221221223 - 2² = 3221221219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221221195 and 3221221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221221229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178886 + ... + 196067.

It is an arithmetic number, because the mean of its divisors is an integer number (299213292).

Almost surely, 2^3221221223 is an apocalyptic number.

3221221223 is a deficient number, since it is larger than the sum of its proper divisors (369338281).

3221221223 is a wasteful number, since it uses less digits than its factorization.

3221221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375046 (or 375035 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 3221221223 is about 56755.8034301339. The cubic root of 3221221223 is about 1476.8629106357.

It can be divided in two parts, 32212 and 21223, that added together give a palindrome (53435).

The spelling of 3221221223 in words is "three billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-three".