122250811 has 2 divisors, whose sum is σ = 122250812. Its totient is φ = 122250810.

The previous prime is 122250809. The next prime is 122250823. The reversal of 122250811 is 118052221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122250811 - 2¹ = 122250809 is a prime.

Together with 122250809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122250881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61125405 + 61125406.

It is an arithmetic number, because the mean of its divisors is an integer number (61125406).

Almost surely, 2^122250811 is an apocalyptic number.

122250811 is a deficient number, since it is larger than the sum of its proper divisors (1).

122250811 is an equidigital number, since it uses as much as digits as its factorization.

122250811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 122250811 is about 11056.7088683749. The cubic root of 122250811 is about 496.3072083903.

The spelling of 122250811 in words is "one hundred twenty-two million, two hundred fifty thousand, eight hundred eleven".