40012224281 has 2 divisors, whose sum is σ = 40012224282. Its totient is φ = 40012224280.

The previous prime is 40012224257. The next prime is 40012224293. The reversal of 40012224281 is 18242221004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25855032025 + 14157192256 = 160795^2 + 118984^2 .

It is a cyclic number.

It is not a de Polignac number, because 40012224281 - 2¹⁴ = 40012207897 is a prime.

It is a super-2 number, since 2×40012224281² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40012224281.

It is not a weakly prime, because it can be changed into another prime (40012224211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006112140 + 20006112141.

It is an arithmetic number, because the mean of its divisors is an integer number (20006112141).

Almost surely, 2^40012224281 is an apocalyptic number.

It is an amenable number.

40012224281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012224281 is an equidigital number, since it uses as much as digits as its factorization.

40012224281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 40012224281 its reverse (18242221004), we get a palindrome (58254445285).

The spelling of 40012224281 in words is "forty billion, twelve million, two hundred twenty-four thousand, two hundred eighty-one".