501414221 has 16 divisors (see below), whose sum is σ = 626385408. Its totient is φ = 389934000.

The previous prime is 501414211. The next prime is 501414229. The reversal of 501414221 is 122414105.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501414221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 501414193 and 501414202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501414229) 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, 34046 + ... + 46496.

It is an arithmetic number, because the mean of its divisors is an integer number (39149088).

Almost surely, 2^501414221 is an apocalyptic number.

It is an amenable number.

501414221 is a deficient number, since it is larger than the sum of its proper divisors (124971187).

501414221 is a wasteful number, since it uses less digits than its factorization.

501414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12992.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 501414221 is about 22392.2803885625. The cubic root of 501414221 is about 794.4481335393.

Adding to 501414221 its reverse (122414105), we get a palindrome (623828326).

The spelling of 501414221 in words is "five hundred one million, four hundred fourteen thousand, two hundred twenty-one".