201110100112221 has 32 divisors (see below), whose sum is σ = 277391993088000. Its totient is φ = 129521131401600.

The previous prime is 201110100112213. The next prime is 201110100112279. The reversal of 201110100112221 is 122211001011102.

It is a happy number.

It is not a de Polignac number, because 201110100112221 - 2³ = 201110100112213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201110100112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110100112721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13073971 + ... + 23940528.

It is an arithmetic number, because the mean of its divisors is an integer number (8668499784000).

Almost surely, 2^{201110100112221} is an apocalyptic number.

It is an amenable number.

201110100112221 is a deficient number, since it is larger than the sum of its proper divisors (76281892975779).

201110100112221 is a wasteful number, since it uses less digits than its factorization.

201110100112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37014977.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201110100112221 its reverse (122211001011102), we get a palindrome (323321101123323).

The spelling of 201110100112221 in words is "two hundred one trillion, one hundred ten billion, one hundred million, one hundred twelve thousand, two hundred twenty-one".