122201211222 has 16 divisors (see below), whose sum is σ = 271558247280. Its totient is φ = 40733737056.

The previous prime is 122201211199. The next prime is 122201211233. The reversal of 122201211222 is 222112102221.

It is a happy number.

122201211222 is a `hidden beast` number, since 12 + 220 + 1 + 211 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122201211195 and 122201211204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131492643 + ... + 1131492750.

It is an arithmetic number, because the mean of its divisors is an integer number (16972390455).

Almost surely, 2^122201211222 is an apocalyptic number.

122201211222 is an abundant number, since it is smaller than the sum of its proper divisors (149357036058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122201211222 is a wasteful number, since it uses less digits than its factorization.

122201211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262985404 (or 2262985398 counting only the distinct ones).

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

Adding to 122201211222 its reverse (222112102221), we get a palindrome (344313313443).

The spelling of 122201211222 in words is "one hundred twenty-two billion, two hundred one million, two hundred eleven thousand, two hundred twenty-two".