4881221 has 4 divisors (see below), whose sum is σ = 5093472. Its totient is φ = 4668972.

The previous prime is 4881211. The next prime is 4881223. The reversal of 4881221 is 1221884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4881221 - 2¹⁸ = 4619077 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 (4881223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106091 + ... + 106136.

It is an arithmetic number, because the mean of its divisors is an integer number (1273368).

Almost surely, 2^4881221 is an apocalyptic number.

It is an amenable number.

4881221 is a deficient number, since it is larger than the sum of its proper divisors (212251).

4881221 is a wasteful number, since it uses less digits than its factorization.

4881221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212250.

The product of its digits is 1024, while the sum is 26.

The square root of 4881221 is about 2209.3485465177. The cubic root of 4881221 is about 169.6326670529.

It can be divided in two parts, 4881 and 221, that multiplied together give a palindrome (1078701).

The spelling of 4881221 in words is "four million, eight hundred eighty-one thousand, two hundred twenty-one".