122210102221 has 2 divisors, whose sum is σ = 122210102222. Its totient is φ = 122210102220.

The previous prime is 122210102213. The next prime is 122210102233. The reversal of 122210102221 is 122201012221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75936069225 + 46274032996 = 275565^2 + 215114^2 .

It is an emirp because it is prime and its reverse (122201012221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122210102221 - 2³ = 122210102213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122210102195 and 122210102204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122210102281) 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 as a sum of consecutive naturals, namely, 61105051110 + 61105051111.

It is an arithmetic number, because the mean of its divisors is an integer number (61105051111).

Almost surely, 2^122210102221 is an apocalyptic number.

It is an amenable number.

122210102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122210102221 is an equidigital number, since it uses as much as digits as its factorization.

122210102221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122210102221 its reverse (122201012221), we get a palindrome (244411114442).

The spelling of 122210102221 in words is "one hundred twenty-two billion, two hundred ten million, one hundred two thousand, two hundred twenty-one".