122110310221 has 4 divisors (see below), whose sum is σ = 123001626492. Its totient is φ = 121218993952.

The previous prime is 122110310219. The next prime is 122110310239. The reversal of 122110310221 is 122013011221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88396209225 + 33714100996 = 297315^2 + 183614^2 .

It is a cyclic number.

It is not a de Polignac number, because 122110310221 - 2¹ = 122110310219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122110310195 and 122110310204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110310921) 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 3 ways as a sum of consecutive naturals, for example, 445657930 + ... + 445658203.

It is an arithmetic number, because the mean of its divisors is an integer number (30750406623).

Almost surely, 2^122110310221 is an apocalyptic number.

It is an amenable number.

122110310221 is a deficient number, since it is larger than the sum of its proper divisors (891316271).

122110310221 is an equidigital number, since it uses as much as digits as its factorization.

122110310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891316270.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 122110310221 its reverse (122013011221), we get a palindrome (244123321442).

The spelling of 122110310221 in words is "one hundred twenty-two billion, one hundred ten million, three hundred ten thousand, two hundred twenty-one".