12011020221112 has 32 divisors (see below), whose sum is σ = 24569850107520. Its totient is φ = 5459142601440.

The previous prime is 12011020221077. The next prime is 12011020221229. The reversal of 12011020221112 is 21112202011021.

It is a super-2 number, since 2×12011020221112² (a number of 27 digits) contains 22 as substring.

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, 3976428 + ... + 6311419.

It is an arithmetic number, because the mean of its divisors is an integer number (767807815860).

Almost surely, 2^{12011020221112} is an apocalyptic number.

It is an amenable number.

12011020221112 is an abundant number, since it is smaller than the sum of its proper divisors (12558829886408).

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

12011020221112 is a wasteful number, since it uses less digits than its factorization.

12011020221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10301131 (or 10301127 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011020221112 its reverse (21112202011021), we get a palindrome (33123222232133).

The spelling of 12011020221112 in words is "twelve trillion, eleven billion, twenty million, two hundred twenty-one thousand, one hundred twelve".