122202221 has 4 divisors (see below), whose sum is σ = 122571744. Its totient is φ = 121832700.

The previous prime is 122202203. The next prime is 122202233.

122202221 is nontrivially palindromic in base 10.

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 a de Polignac number, because none of the positive numbers 2^k-122202221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122202196 and 122202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184265 + ... + 184926.

It is an arithmetic number, because the mean of its divisors is an integer number (30642936).

Almost surely, 2^122202221 is an apocalyptic number.

It is an amenable number.

122202221 is a deficient number, since it is larger than the sum of its proper divisors (369523).

122202221 is an equidigital number, since it uses as much as digits as its factorization.

122202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369522.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 122202221 is about 11054.5113415293. The cubic root of 122202221 is about 496.2414453284.

It can be divided in two parts, 12220 and 2221, that added together give a palindrome (14441).

The spelling of 122202221 in words is "one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".