122020110110221 has 2 divisors, whose sum is σ = 122020110110222. Its totient is φ = 122020110110220.

The previous prime is 122020110110219. The next prime is 122020110110263. The reversal of 122020110110221 is 122011011020221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64173893961321 + 57846216148900 = 8010861^2 + 7605670^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020110110221 - 2¹ = 122020110110219 is a prime.

Together with 122020110110219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 122020110110195 and 122020110110204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122020110110291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010055055110 + 61010055055111.

It is an arithmetic number, because the mean of its divisors is an integer number (61010055055111).

Almost surely, 2^{122020110110221} is an apocalyptic number.

It is an amenable number.

122020110110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020110110221 is an equidigital number, since it uses as much as digits as its factorization.

122020110110221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122020110110221 its reverse (122011011020221), we get a palindrome (244031121130442).

The spelling of 122020110110221 in words is "one hundred twenty-two trillion, twenty billion, one hundred ten million, one hundred ten thousand, two hundred twenty-one".