122121210022271 has 2 divisors, whose sum is σ = 122121210022272. Its totient is φ = 122121210022270.

The previous prime is 122121210022187. The next prime is 122121210022277. The reversal of 122121210022271 is 172220012121221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (172220012121221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121210022271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122121210022271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121210022277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060605011135 + 61060605011136.

It is an arithmetic number, because the mean of its divisors is an integer number (61060605011136).

Almost surely, 2^{122121210022271} is an apocalyptic number.

122121210022271 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121210022271 is an equidigital number, since it uses as much as digits as its factorization.

122121210022271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 122121210022271 its reverse (172220012121221), we get a palindrome (294341222143492).

The spelling of 122121210022271 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, twenty-two thousand, two hundred seventy-one".