226402240081 has 2 divisors, whose sum is σ = 226402240082. Its totient is φ = 226402240080.

The previous prime is 226402240079. The next prime is 226402240151. The reversal of 226402240081 is 180042204622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211775756481 + 14626483600 = 460191^2 + 120940^2 .

It is a cyclic number.

It is not a de Polignac number, because 226402240081 - 2¹ = 226402240079 is a prime.

It is a super-2 number, since 2×226402240081² (a number of 24 digits) contains 22 as substring.

Together with 226402240079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (226402240061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113201120040 + 113201120041.

It is an arithmetic number, because the mean of its divisors is an integer number (113201120041).

Almost surely, 2^226402240081 is an apocalyptic number.

It is an amenable number.

226402240081 is a deficient number, since it is larger than the sum of its proper divisors (1).

226402240081 is an equidigital number, since it uses as much as digits as its factorization.

226402240081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 226402240081 in words is "two hundred twenty-six billion, four hundred two million, two hundred forty thousand, eighty-one".