120020121221212 has 12 divisors (see below), whose sum is σ = 210086983230880. Its totient is φ = 59995268869536.

The previous prime is 120020121221149. The next prime is 120020121221249. The reversal of 120020121221212 is 212122121020021.

It is a self number, because there is not a number n which added to its sum of digits gives 120020121221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3697917012 + ... + 3697949467.

Almost surely, 2^{120020121221212} is an apocalyptic number.

It is an amenable number.

120020121221212 is a deficient number, since it is larger than the sum of its proper divisors (90066862009668).

120020121221212 is a wasteful number, since it uses less digits than its factorization.

120020121221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395870540 (or 7395870538 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120020121221212 its reverse (212122121020021), we get a palindrome (332142242241233).

The spelling of 120020121221212 in words is "one hundred twenty trillion, twenty billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".