22512217322 has 64 divisors (see below), whose sum is σ = 40412252160. Its totient is φ = 9205068096.

The previous prime is 22512217313. The next prime is 22512217327. The reversal of 22512217322 is 22371221522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22512217327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5974283 + ... + 5978049.

It is an arithmetic number, because the mean of its divisors is an integer number (631441440).

Almost surely, 2^22512217322 is an apocalyptic number.

22512217322 is a deficient number, since it is larger than the sum of its proper divisors (17900034838).

22512217322 is a wasteful number, since it uses less digits than its factorization.

22512217322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035.

The product of its digits is 6720, while the sum is 29.

Adding to 22512217322 its reverse (22371221522), we get a palindrome (44883438844).

The spelling of 22512217322 in words is "twenty-two billion, five hundred twelve million, two hundred seventeen thousand, three hundred twenty-two".