20021133424112 has 40 divisors (see below), whose sum is σ = 38874672576000. Its totient is φ = 9988962813632.

The previous prime is 20021133424057. The next prime is 20021133424121. The reversal of 20021133424112 is 21142433112002.

It is a happy number.

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, 118454639 + ... + 118623537.

It is an arithmetic number, because the mean of its divisors is an integer number (971866814400).

Almost surely, 2^{20021133424112} is an apocalyptic number.

It is an amenable number.

20021133424112 is a deficient number, since it is larger than the sum of its proper divisors (18853539151888).

20021133424112 is a wasteful number, since it uses less digits than its factorization.

20021133424112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184853 (or 184847 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20021133424112 its reverse (21142433112002), we get a palindrome (41163566536114).

The spelling of 20021133424112 in words is "twenty trillion, twenty-one billion, one hundred thirty-three million, four hundred twenty-four thousand, one hundred twelve".