20000112021021 has 16 divisors (see below), whose sum is σ = 29196093964608. Its totient is φ = 12077520873600.

The previous prime is 20000112021013. The next prime is 20000112021023. The reversal of 20000112021021 is 12012021100002.

It is not a de Polignac number, because 20000112021021 - 2³ = 20000112021013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000112020988 and 20000112021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000112021023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1093969200 + ... + 1093987481.

It is an arithmetic number, because the mean of its divisors is an integer number (1824755872788).

Almost surely, 2^{20000112021021} is an apocalyptic number.

It is an amenable number.

20000112021021 is a deficient number, since it is larger than the sum of its proper divisors (9195981943587).

20000112021021 is a wasteful number, since it uses less digits than its factorization.

20000112021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187956972.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20000112021021 its reverse (12012021100002), we get a palindrome (32012133121023).

The spelling of 20000112021021 in words is "twenty trillion, one hundred twelve million, twenty-one thousand, twenty-one".