122338227681 has 24 divisors (see below), whose sum is σ = 178491157416. Its totient is φ = 80737382400.

The previous prime is 122338227667. The next prime is 122338227703. The reversal of 122338227681 is 186722833221.

122338227681 is a `hidden beast` number, since 1 + 223 + 3 + 82 + 276 + 81 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 57881142225 + 64457085456 = 240585^2 + 253884^2 .

It is not a de Polignac number, because 122338227681 - 2⁷ = 122338227553 is a prime.

It is a super-2 number, since 2×122338227681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122338227581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10350331 + ... + 10362143.

It is an arithmetic number, because the mean of its divisors is an integer number (7437131559).

Almost surely, 2^122338227681 is an apocalyptic number.

It is an amenable number.

122338227681 is a deficient number, since it is larger than the sum of its proper divisors (56152929735).

122338227681 is a wasteful number, since it uses less digits than its factorization.

122338227681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23313 (or 23310 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 122338227681 in words is "one hundred twenty-two billion, three hundred thirty-eight million, two hundred twenty-seven thousand, six hundred eighty-one".