40012224257 has 2 divisors, whose sum is σ = 40012224258. Its totient is φ = 40012224256.

The previous prime is 40012224211. The next prime is 40012224281. The reversal of 40012224257 is 75242221004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20597703361 + 19414520896 = 143519^2 + 139336^2 .

It is a cyclic number.

It is not a de Polignac number, because 40012224257 - 2¹⁰ = 40012223233 is a prime.

It is not a weakly prime, because it can be changed into another prime (40012224457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006112128 + 20006112129.

It is an arithmetic number, because the mean of its divisors is an integer number (20006112129).

Almost surely, 2^40012224257 is an apocalyptic number.

It is an amenable number.

40012224257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012224257 is an equidigital number, since it uses as much as digits as its factorization.

40012224257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The spelling of 40012224257 in words is "forty billion, twelve million, two hundred twenty-four thousand, two hundred fifty-seven".