122221221222041 has 2 divisors, whose sum is σ = 122221221222042. Its totient is φ = 122221221222040.

The previous prime is 122221221222031. The next prime is 122221221222209. The reversal of 122221221222041 is 140222122122221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111552041712400 + 10669179509641 = 10561820^2 + 3266371^2 .

It is an emirp because it is prime and its reverse (140222122122221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122221221222041 - 2⁶ = 122221221221977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122221221222041.

It is not a weakly prime, because it can be changed into another prime (122221221222031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110610611020 + 61110610611021.

It is an arithmetic number, because the mean of its divisors is an integer number (61110610611021).

Almost surely, 2^{122221221222041} is an apocalyptic number.

It is an amenable number.

122221221222041 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221221222041 is an equidigital number, since it uses as much as digits as its factorization.

122221221222041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 122221221222041 its reverse (140222122122221), we get a palindrome (262443343344262).

The spelling of 122221221222041 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, forty-one".