12122021120212 has 24 divisors (see below), whose sum is σ = 21337628004000. Its totient is φ = 6025560802656.

The previous prime is 12122021120189. The next prime is 12122021120227. The reversal of 12122021120212 is 21202112022121.

It is a self number, because there is not a number n which added to its sum of digits gives 12122021120212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575839 + ... + 10767577.

It is an arithmetic number, because the mean of its divisors is an integer number (889067833500).

Almost surely, 2^{12122021120212} is an apocalyptic number.

It is an amenable number.

12122021120212 is a deficient number, since it is larger than the sum of its proper divisors (9215606883788).

12122021120212 is a wasteful number, since it uses less digits than its factorization.

12122021120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206615 (or 1206613 counting only the distinct ones).

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

Adding to 12122021120212 its reverse (21202112022121), we get a palindrome (33324133142333).

The spelling of 12122021120212 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty thousand, two hundred twelve".