122110002221 has 4 divisors (see below), whose sum is σ = 122160029244. Its totient is φ = 122059975200.

The previous prime is 122110002197. The next prime is 122110002227. The reversal of 122110002221 is 122200011221.

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 68754084100 + 53355918121 = 262210^2 + 230989^2 .

It is a cyclic number.

It is not a de Polignac number, because 122110002221 - 2¹⁰ = 122110001197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122110002196 and 122110002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110002227) 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, 25009850 + ... + 25014731.

It is an arithmetic number, because the mean of its divisors is an integer number (30540007311).

Almost surely, 2^122110002221 is an apocalyptic number.

It is an amenable number.

122110002221 is a deficient number, since it is larger than the sum of its proper divisors (50027023).

122110002221 is an equidigital number, since it uses as much as digits as its factorization.

122110002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50027022.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122110002221 its reverse (122200011221), we get a palindrome (244310013442).

The spelling of 122110002221 in words is "one hundred twenty-two billion, one hundred ten million, two thousand, two hundred twenty-one".