451541214221 has 16 divisors (see below), whose sum is σ = 466920417600. Its totient is φ = 436474684800.

The previous prime is 451541214211. The next prime is 451541214233. The reversal of 451541214221 is 122412145154.

It is a cyclic number.

It is not a de Polignac number, because 451541214221 - 2¹⁴ = 451541197837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451541214211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712886 + ... + 1187976.

It is an arithmetic number, because the mean of its divisors is an integer number (29182526100).

Almost surely, 2^451541214221 is an apocalyptic number.

It is an amenable number.

451541214221 is a deficient number, since it is larger than the sum of its proper divisors (15379203379).

451541214221 is a wasteful number, since it uses less digits than its factorization.

451541214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475420.

The product of its digits is 12800, while the sum is 32.

Adding to 451541214221 its reverse (122412145154), we get a palindrome (573953359375).

The spelling of 451541214221 in words is "four hundred fifty-one billion, five hundred forty-one million, two hundred fourteen thousand, two hundred twenty-one".