110221202021221 has 8 divisors (see below), whose sum is σ = 110238538364064. Its totient is φ = 110203866571920.

The previous prime is 110221202021171. The next prime is 110221202021237. The reversal of 110221202021221 is 122120202122011.

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 110221202021221 - 2³¹ = 110219054537573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221202021921) 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, 272219895 + ... + 272624491.

It is an arithmetic number, because the mean of its divisors is an integer number (13779817295508).

Almost surely, 2^{110221202021221} is an apocalyptic number.

It is an amenable number.

110221202021221 is a deficient number, since it is larger than the sum of its proper divisors (17336342843).

110221202021221 is an equidigital number, since it uses as much as digits as its factorization.

110221202021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446771.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 110221202021221 its reverse (122120202122011), we get a palindrome (232341404143232).

The spelling of 110221202021221 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred two million, twenty-one thousand, two hundred twenty-one".