12221201002 has 4 divisors (see below), whose sum is σ = 18331801506. Its totient is φ = 6110600500.

The previous prime is 12221200997. The next prime is 12221201017. The reversal of 12221201002 is 20010212221.

It is a happy number.

12221201002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20010212221 = 23 ⋅870009227.

It can be written as a sum of positive squares in only one way, i.e., 12216659841 + 4541161 = 110529^2 + 2131^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055300249 + ... + 3055300252.

Almost surely, 2^12221201002 is an apocalyptic number.

12221201002 is a deficient number, since it is larger than the sum of its proper divisors (6110600504).

12221201002 is an equidigital number, since it uses as much as digits as its factorization.

12221201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110600503.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12221201002 its reverse (20010212221), we get a palindrome (32231413223).

The spelling of 12221201002 in words is "twelve billion, two hundred twenty-one million, two hundred one thousand, two".