110220112220221 has 4 divisors (see below), whose sum is σ = 112565220990912. Its totient is φ = 107875003449532.

The previous prime is 110220112220171. The next prime is 110220112220237. The reversal of 110220112220221 is 122022211022011.

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 110220112220221 - 2¹⁵ = 110220112187453 is a prime.

It is a super-4 number, since 4×110220112220221⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110220112220521) 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, 1172554385275 + ... + 1172554385368.

It is an arithmetic number, because the mean of its divisors is an integer number (28141305247728).

Almost surely, 2^{110220112220221} is an apocalyptic number.

It is an amenable number.

110220112220221 is a deficient number, since it is larger than the sum of its proper divisors (2345108770691).

110220112220221 is an equidigital number, since it uses as much as digits as its factorization.

110220112220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345108770690.

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

Adding to 110220112220221 its reverse (122022211022011), we get a palindrome (232242323242232).

The spelling of 110220112220221 in words is "one hundred ten trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-one".