122145336644 has 12 divisors (see below), whose sum is σ = 214370348304. Its totient is φ = 60896665704.

The previous prime is 122145336623. The next prime is 122145336647. The reversal of 122145336644 is 446633541221.

It is not an unprimeable number, because it can be changed into a prime (122145336647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43999094 + ... + 44001869.

It is an arithmetic number, because the mean of its divisors is an integer number (17864195692).

Almost surely, 2^122145336644 is an apocalyptic number.

It is an amenable number.

122145336644 is a deficient number, since it is larger than the sum of its proper divisors (92225011660).

122145336644 is a wasteful number, since it uses less digits than its factorization.

122145336644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88001314 (or 88001312 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

Adding to 122145336644 its reverse (446633541221), we get a palindrome (568778877865).

The spelling of 122145336644 in words is "one hundred twenty-two billion, one hundred forty-five million, three hundred thirty-six thousand, six hundred forty-four".