12021303121012 has 12 divisors (see below), whose sum is σ = 21762703926180. Its totient is φ = 5803387713536.

The previous prime is 12021303120979. The next prime is 12021303121031. The reversal of 12021303121012 is 21012130312021.

12021303121012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5587389702756 + 6433913418256 = 2363766^2 + 2536516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51815961613 + ... + 51815961844.

It is an arithmetic number, because the mean of its divisors is an integer number (1813558660515).

Almost surely, 2^{12021303121012} is an apocalyptic number.

It is an amenable number.

12021303121012 is a deficient number, since it is larger than the sum of its proper divisors (9741400805168).

12021303121012 is a wasteful number, since it uses less digits than its factorization.

12021303121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103631923490 (or 103631923488 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12021303121012 its reverse (21012130312021), we get a palindrome (33033433433033).

The spelling of 12021303121012 in words is "twelve trillion, twenty-one billion, three hundred three million, one hundred twenty-one thousand, twelve".