122321215123345 has 16 divisors (see below), whose sum is σ = 175048496674560. Its totient is φ = 80230560974784.

The previous prime is 122321215123343. The next prime is 122321215123363. The reversal of 122321215123345 is 543321512123221.

It is a cyclic number.

It is not a de Polignac number, because 122321215123345 - 2¹ = 122321215123343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122321215123343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75975909210 + ... + 75975910819.

It is an arithmetic number, because the mean of its divisors is an integer number (10940531042160).

Almost surely, 2^{122321215123345} is an apocalyptic number.

It is an amenable number.

122321215123345 is a deficient number, since it is larger than the sum of its proper divisors (52727281551215).

122321215123345 is a wasteful number, since it uses less digits than its factorization.

122321215123345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151951820064.

The product of its digits is 86400, while the sum is 37.

Adding to 122321215123345 its reverse (543321512123221), we get a palindrome (665642727246566).

The spelling of 122321215123345 in words is "one hundred twenty-two trillion, three hundred twenty-one billion, two hundred fifteen million, one hundred twenty-three thousand, three hundred forty-five".