122211210221 has 8 divisors (see below), whose sum is σ = 130455259200. Its totient is φ = 114148349280.

The previous prime is 122211210211. The next prime is 122211210229. The reversal of 122211210221 is 122012112221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122211210221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122211210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211210229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45295616 + ... + 45298313.

It is an arithmetic number, because the mean of its divisors is an integer number (16306907400).

Almost surely, 2^122211210221 is an apocalyptic number.

It is an amenable number.

122211210221 is a deficient number, since it is larger than the sum of its proper divisors (8244048979).

122211210221 is an equidigital number, since it uses as much as digits as its factorization.

122211210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90594019.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122211210221 its reverse (122012112221), we get a palindrome (244223322442).

The spelling of 122211210221 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, two hundred twenty-one".