507221122 has 8 divisors (see below), whose sum is σ = 765230076. Its totient is φ = 252144432.

The previous prime is 507221087. The next prime is 507221149. The reversal of 507221122 is 221122705.

It can be written as a sum of positive squares in 2 ways, for example, as 495463081 + 11758041 = 22259^2 + 3429^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 507221093 and 507221102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732633 + ... + 733324.

Almost surely, 2^507221122 is an apocalyptic number.

507221122 is a deficient number, since it is larger than the sum of its proper divisors (258008954).

507221122 is a wasteful number, since it uses less digits than its factorization.

507221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466132.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 507221122 is about 22521.5701495255. The cubic root of 507221122 is about 797.5032167400.

Adding to 507221122 its reverse (221122705), we get a palindrome (728343827).

The spelling of 507221122 in words is "five hundred seven million, two hundred twenty-one thousand, one hundred twenty-two".