22215324212 has 12 divisors (see below), whose sum is σ = 38878072800. Its totient is φ = 11107303416.

The previous prime is 22215324151. The next prime is 22215324269. The reversal of 22215324212 is 21242351222.

It is a congruent number.

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, 89423 + ... + 228969.

It is an arithmetic number, because the mean of its divisors is an integer number (3239839400).

Almost surely, 2^22215324212 is an apocalyptic number.

It is an amenable number.

22215324212 is a deficient number, since it is larger than the sum of its proper divisors (16662748588).

22215324212 is a wasteful number, since it uses less digits than its factorization.

22215324212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179350 (or 179348 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

Adding to 22215324212 its reverse (21242351222), we get a palindrome (43457675434).

The spelling of 22215324212 in words is "twenty-two billion, two hundred fifteen million, three hundred twenty-four thousand, two hundred twelve".