522231212 has 12 divisors (see below), whose sum is σ = 918004416. Its totient is φ = 259944240.

The previous prime is 522231191. The next prime is 522231221. The reversal of 522231212 is 212132225.

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, 291839 + ... + 293622.

It is an arithmetic number, because the mean of its divisors is an integer number (76500368).

Almost surely, 2^522231212 is an apocalyptic number.

It is an amenable number.

522231212 is a deficient number, since it is larger than the sum of its proper divisors (395773204).

522231212 is a wasteful number, since it uses less digits than its factorization.

522231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585688 (or 585686 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 522231212 is about 22852.3786945692. The cubic root of 522231212 is about 805.2936505678.

Adding to 522231212 its reverse (212132225), we get a palindrome (734363437).

It can be divided in two parts, 52223 and 1212, that added together give a palindrome (53435).

The spelling of 522231212 in words is "five hundred twenty-two million, two hundred thirty-one thousand, two hundred twelve".