454535232221 has 24 divisors (see below), whose sum is σ = 567075206880. Its totient is φ = 362132158752.

The previous prime is 454535232199. The next prime is 454535232247. The reversal of 454535232221 is 122232535454.

It is a de Polignac number, because none of the positive numbers 2^k-454535232221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454535232121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4556531 + ... + 4655216.

It is an arithmetic number, because the mean of its divisors is an integer number (23628133620).

Almost surely, 2^454535232221 is an apocalyptic number.

It is an amenable number.

454535232221 is a deficient number, since it is larger than the sum of its proper divisors (112539974659).

454535232221 is a wasteful number, since it uses less digits than its factorization.

454535232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211833 (or 9211826 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

Adding to 454535232221 its reverse (122232535454), we get a palindrome (576767767675).

The spelling of 454535232221 in words is "four hundred fifty-four billion, five hundred thirty-five million, two hundred thirty-two thousand, two hundred twenty-one".