501222212 has 12 divisors (see below), whose sum is σ = 898532796. Its totient is φ = 244498560.

The previous prime is 501222193. The next prime is 501222259. The reversal of 501222212 is 212222105.

It can be written as a sum of positive squares in 2 ways, for example, as 298045696 + 203176516 = 17264^2 + 14254^2 .

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, 1527953 + ... + 1528280.

It is an arithmetic number, because the mean of its divisors is an integer number (74877733).

Almost surely, 2^501222212 is an apocalyptic number.

It is an amenable number.

501222212 is a deficient number, since it is larger than the sum of its proper divisors (397310584).

501222212 is a wasteful number, since it uses less digits than its factorization.

501222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056278 (or 3056276 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 501222212 is about 22387.9925853123. The cubic root of 501222212 is about 794.3467132893.

Adding to 501222212 its reverse (212222105), we get a palindrome (713444317).

The spelling of 501222212 in words is "five hundred one million, two hundred twenty-two thousand, two hundred twelve".