122078275442 has 18 divisors (see below), whose sum is σ = 194536035783. Its totient is φ = 57444647232.

The previous prime is 122078275421. The next prime is 122078275447. The reversal of 122078275442 is 244572870221.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 102117954481 + 19960320961 = 319559^2 + 141281^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247061.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122078275393 and 122078275402.

It is not an unprimeable number, because it can be changed into a prime (122078275447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8392808 + ... + 8407340.

Almost surely, 2^122078275442 is an apocalyptic number.

122078275442 is a deficient number, since it is larger than the sum of its proper divisors (72457760341).

122078275442 is an frugal number, since it uses more digits than its factorization.

122078275442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29102 (or 14552 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 122078275442 in words is "one hundred twenty-two billion, seventy-eight million, two hundred seventy-five thousand, four hundred forty-two".