121212112002 has 16 divisors (see below), whose sum is σ = 242623436832.
Its totient is φ = 40370835200.
The previous prime is 121212112001. The next prime is 121212112019. The reversal of 121212112002 is 200211212121.
Adding to 121212112002 its reverse (200211212121), we get a palindrome (321423324123).
It is not an unprimeable number, because it can be changed into a prime (121212112001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8292624 + ... + 8307227.
It is an arithmetic number, because the mean of its divisors is an integer number (15163964802).
Almost surely, 2121212112002 is an apocalyptic number.
121212112002 is an abundant number, since it is smaller than the sum of its proper divisors (121411324830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121212112002 is a wasteful number, since it uses less digits than its factorization.
121212112002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16601073.
The product of its (nonzero) digits is 32, while the sum is 15.
The spelling of 121212112002 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred twelve thousand, two".