12222349506 has 12 divisors (see below), whose sum is σ = 26481757302. Its totient is φ = 4074116496.

The previous prime is 12222349429. The next prime is 12222349511. The reversal of 12222349506 is 60594322221.

12222349506 is a `hidden beast` number, since 122 + 2 + 23 + 4 + 9 + 506 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6394401225 + 5827948281 = 79965^2 + 76341^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339509691 + ... + 339509726.

Almost surely, 2^12222349506 is an apocalyptic number.

12222349506 is an abundant number, since it is smaller than the sum of its proper divisors (14259407796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222349506 is a wasteful number, since it uses less digits than its factorization.

12222349506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679019425 (or 679019422 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12222349506 in words is "twelve billion, two hundred twenty-two million, three hundred forty-nine thousand, five hundred six".