122445534213 has 12 divisors (see below), whose sum is σ = 176869257708. Its totient is φ = 81628747200.

The previous prime is 122445534203. The next prime is 122445534221. The reversal of 122445534213 is 312435544221.

It is a happy number.

122445534213 is a `hidden beast` number, since 1 + 22 + 44 + 553 + 42 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5041994049 + 117403540164 = 71007^2 + 342642^2 .

It is not a de Polignac number, because 122445534213 - 2⁶ = 122445534149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122445534203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511513 + ... + 711713.

It is an arithmetic number, because the mean of its divisors is an integer number (14739104809).

Almost surely, 2^122445534213 is an apocalyptic number.

It is an amenable number.

122445534213 is a deficient number, since it is larger than the sum of its proper divisors (54423723495).

122445534213 is a wasteful number, since it uses less digits than its factorization.

122445534213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268164 (or 268161 counting only the distinct ones).

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

The spelling of 122445534213 in words is "one hundred twenty-two billion, four hundred forty-five million, five hundred thirty-four thousand, two hundred thirteen".