20000112110021 has 8 divisors (see below), whose sum is σ = 20012092965720. Its totient is φ = 19988134684672.

The previous prime is 20000112109973. The next prime is 20000112110029. The reversal of 20000112110021 is 12001121100002.

It can be written as a sum of positive squares in 4 ways, for example, as 4487148287521 + 15512963822500 = 2118289^2 + 3938650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000112110021 - 2³⁴ = 19982932240837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20000112109984 and 20000112110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000112110029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10854425 + ... + 12562593.

It is an arithmetic number, because the mean of its divisors is an integer number (2501511620715).

Almost surely, 2^{20000112110021} is an apocalyptic number.

It is an amenable number.

20000112110021 is a deficient number, since it is larger than the sum of its proper divisors (11980855699).

20000112110021 is a wasteful number, since it uses less digits than its factorization.

20000112110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715175.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20000112110021 its reverse (12001121100002), we get a palindrome (32001233210023).

The spelling of 20000112110021 in words is "twenty trillion, one hundred twelve million, one hundred ten thousand, twenty-one".