122611 has 2 divisors, whose sum is σ = 122612. Its totient is φ = 122610.

The previous prime is 122609. The next prime is 122651. The reversal of 122611 is 116221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122611 - 2¹ = 122609 is a prime.

Together with 122609, it forms a pair of twin primes.

It is an Ulam number.

122611 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 122591 and 122600.

It is not a weakly prime, because it can be changed into another prime (122651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61305 + 61306.

It is an arithmetic number, because the mean of its divisors is an integer number (61306).

2¹²²⁶¹¹ is an apocalyptic number.

122611 is a deficient number, since it is larger than the sum of its proper divisors (1).

122611 is an equidigital number, since it uses as much as digits as its factorization.

122611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 13.

The square root of 122611 is about 350.1585355236. The cubic root of 122611 is about 49.6794155722.

Adding to 122611 its reverse (116221), we get a palindrome (238832).

The spelling of 122611 in words is "one hundred twenty-two thousand, six hundred eleven".