12021311022112 has 48 divisors (see below), whose sum is σ = 27209913655680. Its totient is φ = 5121140179968.

The previous prime is 12021311022103. The next prime is 12021311022131. The reversal of 12021311022112 is 21122011312021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021311022112.

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 7 ways as a sum of consecutive naturals, for example, 160640937 + ... + 160715752.

It is an arithmetic number, because the mean of its divisors is an integer number (566873201160).

Almost surely, 2^{12021311022112} is an apocalyptic number.

It is an amenable number.

12021311022112 is an abundant number, since it is smaller than the sum of its proper divisors (15188602633568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021311022112 is a wasteful number, since it uses less digits than its factorization.

12021311022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321356873 (or 321356865 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12021311022112 its reverse (21122011312021), we get a palindrome (33143322334133).

The spelling of 12021311022112 in words is "twelve trillion, twenty-one billion, three hundred eleven million, twenty-two thousand, one hundred twelve".