12221010002 has 12 divisors (see below), whose sum is σ = 18985436106. Its totient is φ = 5899797120.

The previous prime is 12221009981. The next prime is 12221010013. The reversal of 12221010002 is 20001012221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9809119681 + 2411890321 = 99041^2 + 49111^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3631199 + ... + 3634562.

Almost surely, 2^12221010002 is an apocalyptic number.

12221010002 is a deficient number, since it is larger than the sum of its proper divisors (6764426104).

12221010002 is an equidigital number, since it uses as much as digits as its factorization.

12221010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265821 (or 7265792 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12221010002 its reverse (20001012221), we get a palindrome (32222022223).

The spelling of 12221010002 in words is "twelve billion, two hundred twenty-one million, ten thousand, two".