12222111002 has 8 divisors (see below), whose sum is σ = 19411588116. Its totient is φ = 5751581632.

The previous prime is 12222111001. The next prime is 12222111007. The reversal of 12222111002 is 20011122221.

It can be written as a sum of positive squares in 2 ways, for example, as 10774232401 + 1447878601 = 103799^2 + 38051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12222111001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 179736893 + ... + 179736960.

Almost surely, 2^12222111002 is an apocalyptic number.

12222111002 is a deficient number, since it is larger than the sum of its proper divisors (7189477114).

12222111002 is a wasteful number, since it uses less digits than its factorization.

12222111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359473872.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12222111002 its reverse (20011122221), we get a palindrome (32233233223).

The spelling of 12222111002 in words is "twelve billion, two hundred twenty-two million, one hundred eleven thousand, two".