12222212002 has 48 divisors (see below), whose sum is σ = 25054952832. Its totient is φ = 4395595680.

The previous prime is 12222211979. The next prime is 12222212003. The reversal of 12222212002 is 20021222221.

It is not an unprimeable number, because it can be changed into a prime (12222212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422058 + ... + 450085.

It is an arithmetic number, because the mean of its divisors is an integer number (521978184).

Almost surely, 2^12222212002 is an apocalyptic number.

12222212002 is an abundant number, since it is smaller than the sum of its proper divisors (12832740830).

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

12222212002 is a wasteful number, since it uses less digits than its factorization.

12222212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872183 (or 872176 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222212002 its reverse (20021222221), we get a palindrome (32243434223).

It can be divided in two parts, 1222221 and 2002, that multiplied together give a palindrome (2446886442).

The spelling of 12222212002 in words is "twelve billion, two hundred twenty-two million, two hundred twelve thousand, two".