226635322091 has 2 divisors, whose sum is σ = 226635322092. Its totient is φ = 226635322090.

The previous prime is 226635322037. The next prime is 226635322153. The reversal of 226635322091 is 190223536622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226635322091 - 2¹⁸ = 226635059947 is a prime.

It is a super-2 number, since 2×226635322091² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (226635312091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113317661045 + 113317661046.

It is an arithmetic number, because the mean of its divisors is an integer number (113317661046).

Almost surely, 2^226635322091 is an apocalyptic number.

226635322091 is a deficient number, since it is larger than the sum of its proper divisors (1).

226635322091 is an equidigital number, since it uses as much as digits as its factorization.

226635322091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 226635322091 in words is "two hundred twenty-six billion, six hundred thirty-five million, three hundred twenty-two thousand, ninety-one".