12001221202 has 4 divisors (see below), whose sum is σ = 18001831806. Its totient is φ = 6000610600.

The previous prime is 12001221187. The next prime is 12001221217. The reversal of 12001221202 is 20212210021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20212210021 = 33377 ⋅605573.

It is an interprime number because it is at equal distance from previous prime (12001221187) and next prime (12001221217).

It can be written as a sum of positive squares in only one way, i.e., 11178621441 + 822599761 = 105729^2 + 28681^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000305299 + ... + 3000305302.

Almost surely, 2^12001221202 is an apocalyptic number.

12001221202 is a deficient number, since it is larger than the sum of its proper divisors (6000610604).

12001221202 is an equidigital number, since it uses as much as digits as its factorization.

12001221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000610603.

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

Adding to 12001221202 its reverse (20212210021), we get a palindrome (32213431223).

The spelling of 12001221202 in words is "twelve billion, one million, two hundred twenty-one thousand, two hundred two".