110220121001221 has 16 divisors (see below), whose sum is σ = 137439207456768. Its totient is φ = 85872112484400.

The previous prime is 110220121001201. The next prime is 110220121001359. The reversal of 110220121001221 is 122100121022011.

It is not a de Polignac number, because 110220121001221 - 2⁵ = 110220121001189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110220121001195 and 110220121001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110220121001201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113648065 + ... + 114613798.

It is an arithmetic number, because the mean of its divisors is an integer number (8589950466048).

Almost surely, 2^{110220121001221} is an apocalyptic number.

110220121001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110220121001221 is a deficient number, since it is larger than the sum of its proper divisors (27219086455547).

110220121001221 is a wasteful number, since it uses less digits than its factorization.

110220121001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228268152.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110220121001221 its reverse (122100121022011), we get a palindrome (232320242023232).

The spelling of 110220121001221 in words is "one hundred ten trillion, two hundred twenty billion, one hundred twenty-one million, one thousand, two hundred twenty-one".