12320022212 has 6 divisors (see below), whose sum is σ = 21560038878. Its totient is φ = 6160011104.

The previous prime is 12320022193. The next prime is 12320022217. The reversal of 12320022212 is 21222002321.

It can be written as a sum of positive squares in only one way, i.e., 12262018756 + 58003456 = 110734^2 + 7616^2 .

It is not an unprimeable number, because it can be changed into a prime (12320022217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540002773 + ... + 1540002780.

It is an arithmetic number, because the mean of its divisors is an integer number (3593339813).

Almost surely, 2^12320022212 is an apocalyptic number.

It is an amenable number.

12320022212 is a deficient number, since it is larger than the sum of its proper divisors (9240016666).

12320022212 is a wasteful number, since it uses less digits than its factorization.

12320022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080005557 (or 3080005555 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12320022212 its reverse (21222002321), we get a palindrome (33542024533).

The spelling of 12320022212 in words is "twelve billion, three hundred twenty million, twenty-two thousand, two hundred twelve".