3221551223 has 8 divisors (see below), whose sum is σ = 3517562496. Its totient is φ = 2926063800.

The previous prime is 3221551171. The next prime is 3221551237.

It is a happy number.

3221551223 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3221551223 - 2¹² = 3221547127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221551192 and 3221551201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221551243) 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, 118043 + ... + 142748.

It is an arithmetic number, because the mean of its divisors is an integer number (439695312).

Almost surely, 2^3221551223 is an apocalyptic number.

3221551223 is a deficient number, since it is larger than the sum of its proper divisors (296011273).

3221551223 is a wasteful number, since it uses less digits than its factorization.

3221551223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261925.

The product of its digits is 3600, while the sum is 26.

The square root of 3221551223 is about 56758.7105473689. The cubic root of 3221551223 is about 1476.9133416250.

It can be divided in two parts, 32215 and 51223, that added together give a palindrome (83438).

The spelling of 3221551223 in words is "three billion, two hundred twenty-one million, five hundred fifty-one thousand, two hundred twenty-three".