110001001201221 has 16 divisors (see below), whose sum is σ = 158956207526144. Its totient is φ = 67261758692544.

The previous prime is 110001001201213. The next prime is 110001001201241. The reversal of 110001001201221 is 122102100100011.

It is not a de Polignac number, because 110001001201221 - 2³ = 110001001201213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110001001201197 and 110001001201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001001201241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8982600541 + ... + 8982612786.

It is an arithmetic number, because the mean of its divisors is an integer number (9934762970384).

Almost surely, 2^{110001001201221} is an apocalyptic number.

It is an amenable number.

110001001201221 is a deficient number, since it is larger than the sum of its proper divisors (48955206324923).

110001001201221 is a wasteful number, since it uses less digits than its factorization.

110001001201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17965213500.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 110001001201221 its reverse (122102100100011), we get a palindrome (232103101301232).

The spelling of 110001001201221 in words is "one hundred ten trillion, one billion, one million, two hundred one thousand, two hundred twenty-one".