121212102000202 has 4 divisors (see below), whose sum is σ = 181818153000306. Its totient is φ = 60606051000100.

The previous prime is 121212102000163. The next prime is 121212102000239. The reversal of 121212102000202 is 202000201212121.

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., 99641102597521 + 21570999402681 = 9982039^2 + 4644459^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30303025500049 + ... + 30303025500052.

Almost surely, 2^{121212102000202} is an apocalyptic number.

121212102000202 is a deficient number, since it is larger than the sum of its proper divisors (60606051000104).

121212102000202 is an equidigital number, since it uses as much as digits as its factorization.

121212102000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60606051000103.

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

Adding to 121212102000202 its reverse (202000201212121), we get a palindrome (323212303212323).

The spelling of 121212102000202 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred two million, two hundred two", and thus it is an aban number.