122545242451 has 2 divisors, whose sum is σ = 122545242452. Its totient is φ = 122545242450.

The previous prime is 122545242439. The next prime is 122545242467. The reversal of 122545242451 is 154242545221.

It is a weak prime.

It is an emirp because it is prime and its reverse (154242545221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122545242451 - 2⁹ = 122545241939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122545242451.

It is not a weakly prime, because it can be changed into another prime (122545212451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61272621225 + 61272621226.

It is an arithmetic number, because the mean of its divisors is an integer number (61272621226).

Almost surely, 2^122545242451 is an apocalyptic number.

122545242451 is a deficient number, since it is larger than the sum of its proper divisors (1).

122545242451 is an equidigital number, since it uses as much as digits as its factorization.

122545242451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128000, while the sum is 37.

Adding to 122545242451 its reverse (154242545221), we get a palindrome (276787787672).

The spelling of 122545242451 in words is "one hundred twenty-two billion, five hundred forty-five million, two hundred forty-two thousand, four hundred fifty-one".