20211133121112 has 32 divisors (see below), whose sum is σ = 50536363942080. Its totient is φ = 6735906888480.

The previous prime is 20211133121111. The next prime is 20211133121117. The reversal of 20211133121112 is 21112133111202.

20211133121112 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211133121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70947714 + ... + 71232017.

It is an arithmetic number, because the mean of its divisors is an integer number (1579261373190).

Almost surely, 2^{20211133121112} is an apocalyptic number.

It is an amenable number.

20211133121112 is an abundant number, since it is smaller than the sum of its proper divisors (30325230820968).

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

20211133121112 is a wasteful number, since it uses less digits than its factorization.

20211133121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142185663 (or 142185659 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 20211133121112 its reverse (21112133111202), we get a palindrome (41323266232314).

The spelling of 20211133121112 in words is "twenty trillion, two hundred eleven billion, one hundred thirty-three million, one hundred twenty-one thousand, one hundred twelve".