122450442397 has 2 divisors, whose sum is σ = 122450442398. Its totient is φ = 122450442396.

The previous prime is 122450442391. The next prime is 122450442431. The reversal of 122450442397 is 793244054221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68005686841 + 54444755556 = 260779^2 + 233334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122450442397 is a prime.

It is a super-2 number, since 2×122450442397² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122450442391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61225221198 + 61225221199.

It is an arithmetic number, because the mean of its divisors is an integer number (61225221199).

Almost surely, 2^122450442397 is an apocalyptic number.

It is an amenable number.

122450442397 is a deficient number, since it is larger than the sum of its proper divisors (1).

122450442397 is an equidigital number, since it uses as much as digits as its factorization.

122450442397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 122450442397 in words is "one hundred twenty-two billion, four hundred fifty million, four hundred forty-two thousand, three hundred ninety-seven".