122656215436 has 48 divisors (see below), whose sum is σ = 227020147200. Its totient is φ = 57868728192.

The previous prime is 122656215421. The next prime is 122656215439. The reversal of 122656215436 is 634512656221.

It is a junction number, because it is equal to n+sod(n) for n = 122656215392 and 122656215401.

It is not an unprimeable number, because it can be changed into a prime (122656215439) by changing a digit.

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, 3577471 + ... + 3611593.

It is an arithmetic number, because the mean of its divisors is an integer number (4729586400).

Almost surely, 2^122656215436 is an apocalyptic number.

It is an amenable number.

122656215436 is a deficient number, since it is larger than the sum of its proper divisors (104363931764).

122656215436 is a wasteful number, since it uses less digits than its factorization.

122656215436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34678 (or 34676 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 122656215436 in words is "one hundred twenty-two billion, six hundred fifty-six million, two hundred fifteen thousand, four hundred thirty-six".