12201122220202 has 4 divisors (see below), whose sum is σ = 18301683330306. Its totient is φ = 6100561110100.

The previous prime is 12201122220197. The next prime is 12201122220247. The reversal of 12201122220202 is 20202222110221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8594507226321 + 3606614993881 = 2931639^2 + 1899109^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12201122220202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050280555049 + ... + 3050280555052.

Almost surely, 2^{12201122220202} is an apocalyptic number.

12201122220202 is a deficient number, since it is larger than the sum of its proper divisors (6100561110104).

12201122220202 is an equidigital number, since it uses as much as digits as its factorization.

12201122220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100561110103.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12201122220202 its reverse (20202222110221), we get a palindrome (32403344330423).

The spelling of 12201122220202 in words is "twelve trillion, two hundred one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred two".