210110121002221 has 16 divisors (see below), whose sum is σ = 229313534986368. Its totient is φ = 190923793632000.

The previous prime is 210110121002191. The next prime is 210110121002251. The reversal of 210110121002221 is 122200121011012.

It is an interprime number because it is at equal distance from previous prime (210110121002191) and next prime (210110121002251).

It is not a de Polignac number, because 210110121002221 - 2²⁷ = 210109986784493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210110121002195 and 210110121002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110121002251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286167696 + ... + 1286331046.

It is an arithmetic number, because the mean of its divisors is an integer number (14332095936648).

Almost surely, 2^{210110121002221} is an apocalyptic number.

It is an amenable number.

210110121002221 is a deficient number, since it is larger than the sum of its proper divisors (19203413984147).

210110121002221 is a wasteful number, since it uses less digits than its factorization.

210110121002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214932.

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

Adding to 210110121002221 its reverse (122200121011012), we get a palindrome (332310242013233).

The spelling of 210110121002221 in words is "two hundred ten trillion, one hundred ten billion, one hundred twenty-one million, two thousand, two hundred twenty-one".