122736221716 has 24 divisors (see below), whose sum is σ = 229674724776. Its totient is φ = 57186355200.

The previous prime is 122736221701. The next prime is 122736221723. The reversal of 122736221716 is 617122637221.

It can be written as a sum of positive squares in 4 ways, for example, as 105456067600 + 17280154116 = 324740^2 + 131454^2 .

It is a super-2 number, since 2×122736221716² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8928501 + ... + 8942236.

It is an arithmetic number, because the mean of its divisors is an integer number (9569780199).

Almost surely, 2^122736221716 is an apocalyptic number.

It is an amenable number.

122736221716 is a deficient number, since it is larger than the sum of its proper divisors (106938503060).

122736221716 is a wasteful number, since it uses less digits than its factorization.

122736221716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17870859 (or 17870857 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

Adding to 122736221716 its reverse (617122637221), we get a palindrome (739858858937).

The spelling of 122736221716 in words is "one hundred twenty-two billion, seven hundred thirty-six million, two hundred twenty-one thousand, seven hundred sixteen".