122236811 has 2 divisors, whose sum is σ = 122236812. Its totient is φ = 122236810.

The previous prime is 122236799. The next prime is 122236837. The reversal of 122236811 is 118632221.

It is an a-pointer prime, because the next prime (122236837) can be obtained adding 122236811 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122236811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122236111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61118405 + 61118406.

It is an arithmetic number, because the mean of its divisors is an integer number (61118406).

Almost surely, 2^122236811 is an apocalyptic number.

122236811 is a deficient number, since it is larger than the sum of its proper divisors (1).

122236811 is an equidigital number, since it uses as much as digits as its factorization.

122236811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 122236811 is about 11056.0757504641. The cubic root of 122236811 is about 496.2882621870.

The spelling of 122236811 in words is "one hundred twenty-two million, two hundred thirty-six thousand, eight hundred eleven".