121212202102 has 8 divisors (see below), whose sum is σ = 182741239296. Its totient is φ = 60298455672.

The previous prime is 121212202073. The next prime is 121212202117. The reversal of 121212202102 is 201202212121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153822198 + ... + 153822985.

It is an arithmetic number, because the mean of its divisors is an integer number (22842654912).

Almost surely, 2^121212202102 is an apocalyptic number.

121212202102 is a deficient number, since it is larger than the sum of its proper divisors (61529037194).

121212202102 is a wasteful number, since it uses less digits than its factorization.

121212202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307645382.

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

Adding to 121212202102 its reverse (201202212121), we get a palindrome (322414414223).

The spelling of 121212202102 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred two thousand, one hundred two".