122554304412145 has 4 divisors (see below), whose sum is σ = 147065165294580. Its totient is φ = 98043443529712.

The previous prime is 122554304412139. The next prime is 122554304412149. The reversal of 122554304412145 is 541214403455221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42674039656369 + 79880264755776 = 6532537^2 + 8937576^2 .

It is a cyclic number.

It is not a de Polignac number, because 122554304412145 - 2⁴³ = 113758211389937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122554304412149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12255430441210 + ... + 12255430441219.

It is an arithmetic number, because the mean of its divisors is an integer number (36766291323645).

Almost surely, 2^{122554304412145} is an apocalyptic number.

It is an amenable number.

122554304412145 is a deficient number, since it is larger than the sum of its proper divisors (24510860882435).

122554304412145 is an equidigital number, since it uses as much as digits as its factorization.

122554304412145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24510860882434.

The product of its (nonzero) digits is 768000, while the sum is 43.

Adding to 122554304412145 its reverse (541214403455221), we get a palindrome (663768707867366).

The spelling of 122554304412145 in words is "one hundred twenty-two trillion, five hundred fifty-four billion, three hundred four million, four hundred twelve thousand, one hundred forty-five".