12021222022112 has 48 divisors (see below), whose sum is σ = 24566707468800. Its totient is φ = 5784224603520.

The previous prime is 12021222022063. The next prime is 12021222022153. The reversal of 12021222022112 is 21122022212021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33672062 + ... + 34027197.

It is an arithmetic number, because the mean of its divisors is an integer number (511806405600).

Almost surely, 2^{12021222022112} is an apocalyptic number.

It is an amenable number.

12021222022112 is an abundant number, since it is smaller than the sum of its proper divisors (12545485446688).

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

12021222022112 is a wasteful number, since it uses less digits than its factorization.

12021222022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67699479 (or 67699471 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12021222022112 its reverse (21122022212021), we get a palindrome (33143244234133).

The spelling of 12021222022112 in words is "twelve trillion, twenty-one billion, two hundred twenty-two million, twenty-two thousand, one hundred twelve".