7454800221 has 32 divisors (see below), whose sum is σ = 11142067200. Its totient is φ = 4394476800.

The previous prime is 7454800217. The next prime is 7454800229. The reversal of 7454800221 is 1220084547.

7454800221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7454800221 - 2² = 7454800217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7454800229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331080 + ... + 352878.

It is an arithmetic number, because the mean of its divisors is an integer number (348189600).

Almost surely, 2^7454800221 is an apocalyptic number.

It is an amenable number.

7454800221 is a deficient number, since it is larger than the sum of its proper divisors (3687266979).

7454800221 is a wasteful number, since it uses less digits than its factorization.

7454800221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22097.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 7454800221 is about 86341.1849640715. The cubic root of 7454800221 is about 1953.4936467925.

Adding to 7454800221 its reverse (1220084547), we get a palindrome (8674884768).

The spelling of 7454800221 in words is "seven billion, four hundred fifty-four million, eight hundred thousand, two hundred twenty-one".