20211121120012 has 12 divisors (see below), whose sum is σ = 35606840900400. Its totient is φ = 10037738005616.

The previous prime is 20211121119997. The next prime is 20211121120031. The reversal of 20211121120012 is 21002112111202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16955637928 + ... + 16955639119.

It is an arithmetic number, because the mean of its divisors is an integer number (2967236741700).

Almost surely, 2^{20211121120012} is an apocalyptic number.

It is an amenable number.

20211121120012 is a deficient number, since it is larger than the sum of its proper divisors (15395719780388).

20211121120012 is a wasteful number, since it uses less digits than its factorization.

20211121120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33911277200 (or 33911277198 counting only the distinct ones).

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

Adding to 20211121120012 its reverse (21002112111202), we get a palindrome (41213233231214).

The spelling of 20211121120012 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty thousand, twelve".