122555305213345 has 64 divisors (see below), whose sum is σ = 171850254428160. Its totient is φ = 83223068544000.

The previous prime is 122555305213301. The next prime is 122555305213381. The reversal of 122555305213345 is 543312503555221.

It is not a de Polignac number, because 122555305213345 - 2⁹ = 122555305212833 is a prime.

It is a super-2 number, since 2×122555305213345² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122555305213295 and 122555305213304.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19170 + ... + 15656020.

It is an arithmetic number, because the mean of its divisors is an integer number (2685160225440).

Almost surely, 2^{122555305213345} is an apocalyptic number.

It is an amenable number.

122555305213345 is a deficient number, since it is larger than the sum of its proper divisors (49294949214815).

122555305213345 is a wasteful number, since it uses less digits than its factorization.

122555305213345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15637126.

The product of its (nonzero) digits is 2700000, while the sum is 46.

Adding to 122555305213345 its reverse (543312503555221), we get a palindrome (665867808768566).

The spelling of 122555305213345 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred five million, two hundred thirteen thousand, three hundred forty-five".