1222505212 has 24 divisors (see below), whose sum is σ = 2230284672. Its totient is φ = 585672000.

The previous prime is 1222505189. The next prime is 1222505233. The reversal of 1222505212 is 2125052221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36283 + ... + 61330.

It is an arithmetic number, because the mean of its divisors is an integer number (92928528).

Almost surely, 2^1222505212 is an apocalyptic number.

It is an amenable number.

1222505212 is a deficient number, since it is larger than the sum of its proper divisors (1007779460).

1222505212 is a wasteful number, since it uses less digits than its factorization.

1222505212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97749 (or 97747 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1222505212 is about 34964.3420072508. The cubic root of 1222505212 is about 1069.2606217605.

Adding to 1222505212 its reverse (2125052221), we get a palindrome (3347557433).

The spelling of 1222505212 in words is "one billion, two hundred twenty-two million, five hundred five thousand, two hundred twelve".