110220202111221 has 24 divisors (see below), whose sum is σ = 165105431565984. Its totient is φ = 73479280708080.

The previous prime is 110220202111219. The next prime is 110220202111241. The reversal of 110220202111221 is 122111202022011.

110220202111221 is a `hidden beast` number, since 1 + 10 + 220 + 2 + 0 + 211 + 1 + 221 = 666.

It is not a de Polignac number, because 110220202111221 - 2¹ = 110220202111219 is a prime.

It is a super-2 number, since 2×110220202111221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110220202111194 and 110220202111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110220202111241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18668155 + ... + 23852471.

It is an arithmetic number, because the mean of its divisors is an integer number (6879392981916).

Almost surely, 2^{110220202111221} is an apocalyptic number.

It is an amenable number.

110220202111221 is a deficient number, since it is larger than the sum of its proper divisors (54885229454763).

110220202111221 is an frugal number, since it uses more digits than its factorization.

110220202111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271823 (or 5271811 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 110220202111221 its reverse (122111202022011), we get a palindrome (232331404133232).

The spelling of 110220202111221 in words is "one hundred ten trillion, two hundred twenty billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".