122102232221 has 2 divisors, whose sum is σ = 122102232222. Its totient is φ = 122102232220.

The previous prime is 122102232211. The next prime is 122102232257. The reversal of 122102232221 is 122232201221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110326944025 + 11775288196 = 332155^2 + 108514^2 .

It is a cyclic number.

It is not a de Polignac number, because 122102232221 - 2¹⁰ = 122102231197 is a prime.

It is a super-2 number, since 2×122102232221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122102232193 and 122102232202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122102232211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051116110 + 61051116111.

It is an arithmetic number, because the mean of its divisors is an integer number (61051116111).

Almost surely, 2^122102232221 is an apocalyptic number.

It is an amenable number.

122102232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102232221 is an equidigital number, since it uses as much as digits as its factorization.

122102232221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122102232221 its reverse (122232201221), we get a palindrome (244334433442).

The spelling of 122102232221 in words is "one hundred twenty-two billion, one hundred two million, two hundred thirty-two thousand, two hundred twenty-one".