4551226221 has 16 divisors (see below), whose sum is σ = 6164597120. Its totient is φ = 2986372800.

The previous prime is 4551226201. The next prime is 4551226231. The reversal of 4551226221 is 1226221554.

It is not a de Polignac number, because 4551226221 - 2⁵ = 4551226189 is a prime.

It is a super-2 number, since 2×4551226221² = 41427320229435881682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551226201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3291 + ... + 95463.

It is an arithmetic number, because the mean of its divisors is an integer number (385287320).

Almost surely, 2^4551226221 is an apocalyptic number.

It is an amenable number.

4551226221 is a deficient number, since it is larger than the sum of its proper divisors (1613370899).

4551226221 is a wasteful number, since it uses less digits than its factorization.

4551226221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92436.

The product of its digits is 9600, while the sum is 30.

The square root of 4551226221 is about 67462.7765586327. The cubic root of 4551226221 is about 1657.2046413332.

Adding to 4551226221 its reverse (1226221554), we get a palindrome (5777447775).

The spelling of 4551226221 in words is "four billion, five hundred fifty-one million, two hundred twenty-six thousand, two hundred twenty-one".