122001431565 has 32 divisors (see below), whose sum is σ = 212182540416. Its totient is φ = 59500903680.

The previous prime is 122001431561. The next prime is 122001431603. The reversal of 122001431565 is 565134100221.

It is not a de Polignac number, because 122001431565 - 2² = 122001431561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001431561) 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 31 ways as a sum of consecutive naturals, for example, 2902726 + ... + 2944455.

It is an arithmetic number, because the mean of its divisors is an integer number (6630704388).

Almost surely, 2^122001431565 is an apocalyptic number.

122001431565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122001431565 is a deficient number, since it is larger than the sum of its proper divisors (90181108851).

122001431565 is a wasteful number, since it uses less digits than its factorization.

122001431565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847309.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 122001431565 its reverse (565134100221), we get a palindrome (687135531786).

The spelling of 122001431565 in words is "one hundred twenty-two billion, one million, four hundred thirty-one thousand, five hundred sixty-five".