122312112512005 has 64 divisors (see below), whose sum is σ = 176251062032640. Its totient is φ = 80499068891136.

The previous prime is 122312112511997. The next prime is 122312112512011. The reversal of 122312112512005 is 500215211213221.

It is a cyclic number.

It is not a de Polignac number, because 122312112512005 - 2³ = 122312112511997 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 45145674 + ... + 47778196.

It is an arithmetic number, because the mean of its divisors is an integer number (2753922844260).

Almost surely, 2^{122312112512005} is an apocalyptic number.

It is an amenable number.

122312112512005 is a deficient number, since it is larger than the sum of its proper divisors (53938949520635).

122312112512005 is a wasteful number, since it uses less digits than its factorization.

122312112512005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634790.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 122312112512005 its reverse (500215211213221), we get a palindrome (622527323725226).

The spelling of 122312112512005 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred twelve million, five hundred twelve thousand, five".