122443125345 has 24 divisors (see below), whose sum is σ = 224719149096. Its totient is φ = 61461646848.

The previous prime is 122443125283. The next prime is 122443125359. The reversal of 122443125345 is 543521344221.

It is a happy number.

122443125345 is a `hidden beast` number, since 12 + 244 + 312 + 53 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9070848081 + 113372277264 = 95241^2 + 336708^2 .

It is not a de Polignac number, because 122443125345 - 2⁸ = 122443125089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80027422 + ... + 80028951.

It is an arithmetic number, because the mean of its divisors is an integer number (9363297879).

Almost surely, 2^122443125345 is an apocalyptic number.

122443125345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122443125345 is a deficient number, since it is larger than the sum of its proper divisors (102276023751).

122443125345 is a wasteful number, since it uses less digits than its factorization.

122443125345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160056401 (or 160056398 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 122443125345 its reverse (543521344221), we get a palindrome (665964469566).

The spelling of 122443125345 in words is "one hundred twenty-two billion, four hundred forty-three million, one hundred twenty-five thousand, three hundred forty-five".