12102220210202 has 4 divisors (see below), whose sum is σ = 18153330315306. Its totient is φ = 6051110105100.

The previous prime is 12102220210193. The next prime is 12102220210229. The reversal of 12102220210202 is 20201202220121.

It is a happy number.

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., 8868549516121 + 3233670694081 = 2978011^2 + 1798241^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025555052549 + ... + 3025555052552.

Almost surely, 2^{12102220210202} is an apocalyptic number.

12102220210202 is a deficient number, since it is larger than the sum of its proper divisors (6051110105104).

12102220210202 is an equidigital number, since it uses as much as digits as its factorization.

12102220210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051110105103.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12102220210202 its reverse (20201202220121), we get a palindrome (32303422430323).

The spelling of 12102220210202 in words is "twelve trillion, one hundred two billion, two hundred twenty million, two hundred ten thousand, two hundred two".