501212 has 6 divisors (see below), whose sum is σ = 877128. Its totient is φ = 250604.

The previous prime is 501209. The next prime is 501217. The reversal of 501212 is 212105.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 501193 and 501202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62648 + ... + 62655.

It is an arithmetic number, because the mean of its divisors is an integer number (146188).

2⁵⁰¹²¹² is an apocalyptic number.

It is an amenable number.

501212 is a deficient number, since it is larger than the sum of its proper divisors (375916).

501212 is a wasteful number, since it uses less digits than its factorization.

501212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125307 (or 125305 counting only the distinct ones).

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

The square root of 501212 is about 707.9632758837. The cubic root of 501212 is about 79.4341318527.

Adding to 501212 its reverse (212105), we get a palindrome (713317).

The spelling of 501212 in words is "five hundred one thousand, two hundred twelve".