122211222201 has 40 divisors (see below), whose sum is σ = 187849337544. Its totient is φ = 79145164800.

The previous prime is 122211222169. The next prime is 122211222239. The reversal of 122211222201 is 102222112221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77139507600 + 45071714601 = 277740^2 + 212301^2 .

It is not a de Polignac number, because 122211222201 - 2⁵ = 122211222169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122211222241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 292665 + ... + 574521.

Almost surely, 2^122211222201 is an apocalyptic number.

It is an amenable number.

122211222201 is a deficient number, since it is larger than the sum of its proper divisors (65638115343).

122211222201 is a wasteful number, since it uses less digits than its factorization.

122211222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282023 (or 282014 counting only the distinct ones).

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

Adding to 122211222201 its reverse (102222112221), we get a palindrome (224433334422).

The spelling of 122211222201 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred one".