122271559 has 2 divisors, whose sum is σ = 122271560. Its totient is φ = 122271558.

The previous prime is 122271557. The next prime is 122271563. The reversal of 122271559 is 955172221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122271559 - 2¹ = 122271557 is a prime.

Together with 122271557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122271551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61135779 + 61135780.

It is an arithmetic number, because the mean of its divisors is an integer number (61135780).

Almost surely, 2^122271559 is an apocalyptic number.

122271559 is a deficient number, since it is larger than the sum of its proper divisors (1).

122271559 is an equidigital number, since it uses as much as digits as its factorization.

122271559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 122271559 is about 11057.6470824493. The cubic root of 122271559 is about 496.3352840035.

The spelling of 122271559 in words is "one hundred twenty-two million, two hundred seventy-one thousand, five hundred fifty-nine".