122554304513155 has 4 divisors (see below), whose sum is σ = 147065165415792. Its totient is φ = 98043443610520.

The previous prime is 122554304513143. The next prime is 122554304513177. The reversal of 122554304513155 is 551315403455221.

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

It is not a de Polignac number, because 122554304513155 - 2⁷ = 122554304513027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12255430451311 + ... + 12255430451320.

It is an arithmetic number, because the mean of its divisors is an integer number (36766291353948).

Almost surely, 2^{122554304513155} is an apocalyptic number.

122554304513155 is a deficient number, since it is larger than the sum of its proper divisors (24510860902637).

122554304513155 is an equidigital number, since it uses as much as digits as its factorization.

122554304513155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24510860902636.

The product of its (nonzero) digits is 1800000, while the sum is 46.

Adding to 122554304513155 its reverse (551315403455221), we get a palindrome (673869707968376).

The spelling of 122554304513155 in words is "one hundred twenty-two trillion, five hundred fifty-four billion, three hundred four million, five hundred thirteen thousand, one hundred fifty-five".