12002121020212 has 12 divisors (see below), whose sum is σ = 22239224243460. Its totient is φ = 5648056950656.

The previous prime is 12002121020167. The next prime is 12002121020213. The reversal of 12002121020212 is 21202012120021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6979878666916 + 5022242353296 = 2641946^2 + 2241036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002121020213) by changing a digit.

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, 88250889787 + ... + 88250889922.

It is an arithmetic number, because the mean of its divisors is an integer number (1853268686955).

Almost surely, 2^{12002121020212} is an apocalyptic number.

It is an amenable number.

12002121020212 is a deficient number, since it is larger than the sum of its proper divisors (10237103223248).

12002121020212 is a wasteful number, since it uses less digits than its factorization.

12002121020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176501779730 (or 176501779728 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12002121020212 its reverse (21202012120021), we get a palindrome (33204133140233).

The spelling of 12002121020212 in words is "twelve trillion, two billion, one hundred twenty-one million, twenty thousand, two hundred twelve".