12221002002 has 16 divisors (see below), whose sum is σ = 26664004512. Its totient is φ = 3703333920.

The previous prime is 12221001997. The next prime is 12221002021. The reversal of 12221002002 is 20020012221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92583283 + ... + 92583414.

It is an arithmetic number, because the mean of its divisors is an integer number (1666500282).

Almost surely, 2^12221002002 is an apocalyptic number.

12221002002 is an abundant number, since it is smaller than the sum of its proper divisors (14443002510).

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

12221002002 is a wasteful number, since it uses less digits than its factorization.

12221002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185166713.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12221002002 its reverse (20020012221), we get a palindrome (32241014223).

The spelling of 12221002002 in words is "twelve billion, two hundred twenty-one million, two thousand, two".