120121212110212 has 6 divisors (see below), whose sum is σ = 210212121192878. Its totient is φ = 60060606055104.

The previous prime is 120121212110173. The next prime is 120121212110233. The reversal of 120121212110212 is 212011212121021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107088057968896 + 13033154141316 = 10348336^2 + 3610146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120121212110212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015151513773 + ... + 15015151513780.

Almost surely, 2^{120121212110212} is an apocalyptic number.

It is an amenable number.

120121212110212 is a deficient number, since it is larger than the sum of its proper divisors (90090909082666).

120121212110212 is a wasteful number, since it uses less digits than its factorization.

120121212110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30030303027557 (or 30030303027555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120121212110212 its reverse (212011212121021), we get a palindrome (332132424231233).

The spelling of 120121212110212 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, two hundred twelve".