122454201511 has 2 divisors, whose sum is σ = 122454201512. Its totient is φ = 122454201510.

The previous prime is 122454201509. The next prime is 122454201533. The reversal of 122454201511 is 115102454221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122454201511 - 2¹ = 122454201509 is a prime.

Together with 122454201509, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 122454201511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122454201811) 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, 61227100755 + 61227100756.

It is an arithmetic number, because the mean of its divisors is an integer number (61227100756).

Almost surely, 2^122454201511 is an apocalyptic number.

122454201511 is a deficient number, since it is larger than the sum of its proper divisors (1).

122454201511 is an equidigital number, since it uses as much as digits as its factorization.

122454201511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 122454201511 its reverse (115102454221), we get a palindrome (237556655732).

The spelling of 122454201511 in words is "one hundred twenty-two billion, four hundred fifty-four million, two hundred one thousand, five hundred eleven".