122251807 has 2 divisors, whose sum is σ = 122251808. Its totient is φ = 122251806.

The previous prime is 122251799. The next prime is 122251819. The reversal of 122251807 is 708152221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122251807 - 2³ = 122251799 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122251007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61125903 + 61125904.

It is an arithmetic number, because the mean of its divisors is an integer number (61125904).

Almost surely, 2^122251807 is an apocalyptic number.

122251807 is a deficient number, since it is larger than the sum of its proper divisors (1).

122251807 is an equidigital number, since it uses as much as digits as its factorization.

122251807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 122251807 is about 11056.7539088107. The cubic root of 122251807 is about 496.3085562222.

The spelling of 122251807 in words is "one hundred twenty-two million, two hundred fifty-one thousand, eight hundred seven".