201112000000021 has 8 divisors (see below), whose sum is σ = 219436882543584. Its totient is φ = 182794113031920.

The previous prime is 201112000000001. The next prime is 201112000000127. The reversal of 201112000000021 is 120000000211102.

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 201112000000021 - 2¹³ = 201111999991829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201111999999944 and 201112000000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112000000001) 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, 1748833750 + ... + 1748948743.

It is an arithmetic number, because the mean of its divisors is an integer number (27429610317948).

Almost surely, 2^{201112000000021} is an apocalyptic number.

It is an amenable number.

201112000000021 is a deficient number, since it is larger than the sum of its proper divisors (18324882543563).

201112000000021 is a wasteful number, since it uses less digits than its factorization.

201112000000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497787731.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201112000000021 its reverse (120000000211102), we get a palindrome (321112000211123).

The spelling of 201112000000021 in words is "two hundred one trillion, one hundred twelve billion, twenty-one", and thus it is an aban number.