122201222211 has 8 divisors (see below), whose sum is σ = 181038847760. Its totient is φ = 81467481456.

The previous prime is 122201222201. The next prime is 122201222233. The reversal of 122201222211 is 112222102221.

It is a happy number.

122201222211 is a `hidden beast` number, since 12 + 220 + 1 + 222 + 211 = 666.

It is not a de Polignac number, because 122201222211 - 2²² = 122197027907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122201222201) 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, 2262985570 + ... + 2262985623.

It is an arithmetic number, because the mean of its divisors is an integer number (22629855970).

Almost surely, 2^122201222211 is an apocalyptic number.

122201222211 is a deficient number, since it is larger than the sum of its proper divisors (58837625549).

122201222211 is an equidigital number, since it uses as much as digits as its factorization.

122201222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525971202 (or 4525971196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122201222211 its reverse (112222102221), we get a palindrome (234423324432).

The spelling of 122201222211 in words is "one hundred twenty-two billion, two hundred one million, two hundred twenty-two thousand, two hundred eleven".