4221501 has 8 divisors (see below), whose sum is σ = 5822880. Its totient is φ = 2717232.

The previous prime is 4221499. The next prime is 4221521. The reversal of 4221501 is 1051224.

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

It is not a de Polignac number, because 4221501 - 2¹ = 4221499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24175 + ... + 24348.

It is an arithmetic number, because the mean of its divisors is an integer number (727860).

Almost surely, 2^4221501 is an apocalyptic number.

It is an amenable number.

4221501 is a deficient number, since it is larger than the sum of its proper divisors (1601379).

4221501 is a wasteful number, since it uses less digits than its factorization.

4221501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48555.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4221501 is about 2054.6291636205. The cubic root of 4221501 is about 161.6177161940.

Adding to 4221501 its reverse (1051224), we get a palindrome (5272725).

The spelling of 4221501 in words is "four million, two hundred twenty-one thousand, five hundred one".