22336681237 has 4 divisors (see below), whose sum is σ = 24054887500. Its totient is φ = 20618474976.

The previous prime is 22336681231. The next prime is 22336681243. The reversal of 22336681237 is 73218663322.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22336681231) and next prime (22336681243).

It can be written as a sum of positive squares in 2 ways, for example, as 13107044196 + 9229637041 = 114486^2 + 96071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22336681237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22336681193 and 22336681202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22336681231) 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, 859103112 + ... + 859103137.

It is an arithmetic number, because the mean of its divisors is an integer number (6013721875).

Almost surely, 2^22336681237 is an apocalyptic number.

It is an amenable number.

22336681237 is a deficient number, since it is larger than the sum of its proper divisors (1718206263).

22336681237 is a wasteful number, since it uses less digits than its factorization.

22336681237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718206262.

The product of its digits is 435456, while the sum is 43.

The spelling of 22336681237 in words is "twenty-two billion, three hundred thirty-six million, six hundred eighty-one thousand, two hundred thirty-seven".