12121220010202 has 4 divisors (see below), whose sum is σ = 18181830015306. Its totient is φ = 6060610005100.

The previous prime is 12121220010181. The next prime is 12121220010223. The reversal of 12121220010202 is 20201002212121.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12121220010181) and next prime (12121220010223).

It can be written as a sum of positive squares in only one way, i.e., 10716594451641 + 1404625558561 = 3273621^2 + 1185169^2 .

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, 3030305002549 + ... + 3030305002552.

Almost surely, 2^{12121220010202} is an apocalyptic number.

12121220010202 is a deficient number, since it is larger than the sum of its proper divisors (6060610005104).

12121220010202 is an equidigital number, since it uses as much as digits as its factorization.

12121220010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060610005103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12121220010202 its reverse (20201002212121), we get a palindrome (32322222222323).

The spelling of 12121220010202 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, ten thousand, two hundred two".