5100221 has 8 divisors (see below), whose sum is σ = 6171840. Its totient is φ = 4114368.

The previous prime is 5100211. The next prime is 5100229. The reversal of 5100221 is 1220015.

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

It is a cyclic number.

It is not a de Polignac number, because 5100221 - 2⁶ = 5100157 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 (5100229) 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, 21311 + ... + 21548.

It is an arithmetic number, because the mean of its divisors is an integer number (771480).

Almost surely, 2^5100221 is an apocalyptic number.

It is an amenable number.

5100221 is a deficient number, since it is larger than the sum of its proper divisors (1071619).

5100221 is a wasteful number, since it uses less digits than its factorization.

5100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42883.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 5100221 is about 2258.3668878196. The cubic root of 5100221 is about 172.1325483598.

Adding to 5100221 its reverse (1220015), we get a palindrome (6320236).

It can be divided in two parts, 5 and 100221, that multiplied together give a palindrome (501105).

The spelling of 5100221 in words is "five million, one hundred thousand, two hundred twenty-one".