201110220200021 has 8 divisors (see below), whose sum is σ = 219397855049184. Its totient is φ = 182823399943920.

The previous prime is 201110220200017. The next prime is 201110220200047. The reversal of 201110220200021 is 120002022011102.

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 201110220200021 - 2² = 201110220200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201110220199969 and 201110220200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110220200081) 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, 203131991 + ... + 204119636.

It is an arithmetic number, because the mean of its divisors is an integer number (27424731881148).

Almost surely, 2^{201110220200021} is an apocalyptic number.

It is an amenable number.

201110220200021 is a deficient number, since it is larger than the sum of its proper divisors (18287634849163).

201110220200021 is a wasteful number, since it uses less digits than its factorization.

201110220200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407296531.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201110220200021 its reverse (120002022011102), we get a palindrome (321112242211123).

The spelling of 201110220200021 in words is "two hundred one trillion, one hundred ten billion, two hundred twenty million, two hundred thousand, twenty-one".