22040040361 has 2 divisors, whose sum is σ = 22040040362. Its totient is φ = 22040040360.

The previous prime is 22040040349. The next prime is 22040040383. The reversal of 22040040361 is 16304004022.

It is a happy number.

It is an a-pointer prime, because the next prime (22040040383) can be obtained adding 22040040361 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20585075625 + 1454964736 = 143475^2 + 38144^2 .

It is a cyclic number.

It is not a de Polignac number, because 22040040361 - 2⁷ = 22040040233 is a prime.

It is a super-2 number, since 2×22040040361² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22040040331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020020180 + 11020020181.

It is an arithmetic number, because the mean of its divisors is an integer number (11020020181).

Almost surely, 2^22040040361 is an apocalyptic number.

It is an amenable number.

22040040361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040040361 is an equidigital number, since it uses as much as digits as its factorization.

22040040361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22040040361 its reverse (16304004022), we get a palindrome (38344044383).

The spelling of 22040040361 in words is "twenty-two billion, forty million, forty thousand, three hundred sixty-one".