110221202212221 has 4 divisors (see below), whose sum is σ = 146961602949632. Its totient is φ = 73480801474812.

The previous prime is 110221202212183. The next prime is 110221202212223. The reversal of 110221202212221 is 122212202122011.

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 not a de Polignac number, because 110221202212221 - 2¹⁵ = 110221202179453 is a prime.

It is a super-2 number, since 2×110221202212221² (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 (110221202212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18370200368701 + ... + 18370200368706.

It is an arithmetic number, because the mean of its divisors is an integer number (36740400737408).

Almost surely, 2^{110221202212221} is an apocalyptic number.

It is an amenable number.

110221202212221 is a deficient number, since it is larger than the sum of its proper divisors (36740400737411).

110221202212221 is an equidigital number, since it uses as much as digits as its factorization.

110221202212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36740400737410.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 110221202212221 its reverse (122212202122011), we get a palindrome (232433404334232).

The spelling of 110221202212221 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred twenty-one".