4453215221 has 32 divisors (see below), whose sum is σ = 5527200000. Its totient is φ = 3493808640.

The previous prime is 4453215167. The next prime is 4453215223. The reversal of 4453215221 is 1225123544.

It is not a de Polignac number, because 4453215221 - 2¹⁰ = 4453214197 is a prime.

It is a super-2 number, since 2×4453215221² = 39662251609092157682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4453215223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8924030 + ... + 8924528.

It is an arithmetic number, because the mean of its divisors is an integer number (172725000).

Almost surely, 2^4453215221 is an apocalyptic number.

It is an amenable number.

4453215221 is a deficient number, since it is larger than the sum of its proper divisors (1073984779).

4453215221 is a wasteful number, since it uses less digits than its factorization.

4453215221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its digits is 9600, while the sum is 29.

The square root of 4453215221 is about 66732.4150694398. The cubic root of 4453215221 is about 1645.2222019789. Note that the first 4 decimals are identical.

Adding to 4453215221 its reverse (1225123544), we get a palindrome (5678338765).

The spelling of 4453215221 in words is "four billion, four hundred fifty-three million, two hundred fifteen thousand, two hundred twenty-one".