110001200021221 has 4 divisors (see below), whose sum is σ = 110001225189952. Its totient is φ = 110001174852492.

The previous prime is 110001200021213. The next prime is 110001200021227. The reversal of 110001200021221 is 122120002100011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110001200021221 - 2³ = 110001200021213 is a prime.

It is a super-2 number, since 2×110001200021221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001200021227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4139565 + ... + 15399298.

It is an arithmetic number, because the mean of its divisors is an integer number (27500306297488).

Almost surely, 2^{110001200021221} is an apocalyptic number.

It is an amenable number.

110001200021221 is a deficient number, since it is larger than the sum of its proper divisors (25168731).

110001200021221 is an equidigital number, since it uses as much as digits as its factorization.

110001200021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168730.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110001200021221 its reverse (122120002100011), we get a palindrome (232121202121232).

The spelling of 110001200021221 in words is "one hundred ten trillion, one billion, two hundred million, twenty-one thousand, two hundred twenty-one".