501222223 has 4 divisors (see below), whose sum is σ = 527602360. Its totient is φ = 474842088.

The previous prime is 501222193. The next prime is 501222259. The reversal of 501222223 is 322222105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322222105 = 5 ⋅64444421.

It is a cyclic number.

It is not a de Polignac number, because 501222223 - 2⁵ = 501222191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 26380117 = 501222223 / (5 + 0 + 1 + 2 + 2 + 2 + 2 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501222023) 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, 13190040 + ... + 13190077.

It is an arithmetic number, because the mean of its divisors is an integer number (131900590).

Almost surely, 2^501222223 is an apocalyptic number.

501222223 is a deficient number, since it is larger than the sum of its proper divisors (26380137).

501222223 is a wasteful number, since it uses less digits than its factorization.

501222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26380136.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 501222223 is about 22387.9928309797. The cubic root of 501222223 is about 794.3467191004.

Adding to 501222223 its reverse (322222105), we get a palindrome (823444328).

The spelling of 501222223 in words is "five hundred one million, two hundred twenty-two thousand, two hundred twenty-three".