122511321316 has 12 divisors (see below), whose sum is σ = 214625599020. Its totient is φ = 61189721600.

The previous prime is 122511321313. The next prime is 122511321343. The reversal of 122511321316 is 613123115221.

It can be written as a sum of positive squares in 2 ways, for example, as 54828095716 + 67683225600 = 234154^2 + 260160^2 .

It is not an unprimeable number, because it can be changed into a prime (122511321311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16480585 + ... + 16488016.

It is an arithmetic number, because the mean of its divisors is an integer number (17885466585).

Almost surely, 2^122511321316 is an apocalyptic number.

It is an amenable number.

122511321316 is a deficient number, since it is larger than the sum of its proper divisors (92114277704).

122511321316 is a wasteful number, since it uses less digits than its factorization.

122511321316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32969534 (or 32969532 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

Adding to 122511321316 its reverse (613123115221), we get a palindrome (735634436537).

The spelling of 122511321316 in words is "one hundred twenty-two billion, five hundred eleven million, three hundred twenty-one thousand, three hundred sixteen".