122521051345 has 16 divisors (see below), whose sum is σ = 183304222848. Its totient is φ = 76376759040.

The previous prime is 122521051337. The next prime is 122521051361. The reversal of 122521051345 is 543150125221.

It is not a de Polignac number, because 122521051345 - 2³ = 122521051337 is a prime.

It is a super-2 number, since 2×122521051345² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159117864 + ... + 159118633.

It is an arithmetic number, because the mean of its divisors is an integer number (11456513928).

Almost surely, 2^122521051345 is an apocalyptic number.

It is an amenable number.

122521051345 is a deficient number, since it is larger than the sum of its proper divisors (60783171503).

122521051345 is a wasteful number, since it uses less digits than its factorization.

122521051345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318236520.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 122521051345 its reverse (543150125221), we get a palindrome (665671176566).

The spelling of 122521051345 in words is "one hundred twenty-two billion, five hundred twenty-one million, fifty-one thousand, three hundred forty-five".