481213221 has 8 divisors (see below), whose sum is σ = 650654784. Its totient is φ = 316290240.

The previous prime is 481213207. The next prime is 481213223. The reversal of 481213221 is 122312184.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 481213221 - 2⁹ = 481212709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481213191 and 481213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481213223) 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 7 ways as a sum of consecutive naturals, for example, 1129396 + ... + 1129821.

It is an arithmetic number, because the mean of its divisors is an integer number (81331848).

Almost surely, 2^481213221 is an apocalyptic number.

It is an amenable number.

481213221 is a deficient number, since it is larger than the sum of its proper divisors (169441563).

481213221 is a wasteful number, since it uses less digits than its factorization.

481213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259291.

The product of its digits is 768, while the sum is 24.

The square root of 481213221 is about 21936.5726812554. The cubic root of 481213221 is about 783.6326398500.

The spelling of 481213221 in words is "four hundred eighty-one million, two hundred thirteen thousand, two hundred twenty-one".