121212212102 has 8 divisors (see below), whose sum is σ = 181832732496. Its totient is φ = 60601301272.

The previous prime is 121212212083. The next prime is 121212212123. The reversal of 121212212102 is 201212212121.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370773 + ... + 2421360.

It is an arithmetic number, because the mean of its divisors is an integer number (22729091562).

Almost surely, 2^121212212102 is an apocalyptic number.

121212212102 is a deficient number, since it is larger than the sum of its proper divisors (60620520394).

121212212102 is a wasteful number, since it uses less digits than its factorization.

121212212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804782.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121212212102 its reverse (201212212121), we get a palindrome (322424424223).

The spelling of 121212212102 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, one hundred two".