226721067073 has 2 divisors, whose sum is σ = 226721067074. Its totient is φ = 226721067072.

The previous prime is 226721067049. The next prime is 226721067101. The reversal of 226721067073 is 370760127622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221824986289 + 4896080784 = 470983^2 + 69972^2 .

It is a cyclic number.

It is not a de Polignac number, because 226721067073 - 2²⁵ = 226687512641 is a prime.

It is not a weakly prime, because it can be changed into another prime (226721067673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113360533536 + 113360533537.

It is an arithmetic number, because the mean of its divisors is an integer number (113360533537).

Almost surely, 2^226721067073 is an apocalyptic number.

It is an amenable number.

226721067073 is a deficient number, since it is larger than the sum of its proper divisors (1).

226721067073 is an equidigital number, since it uses as much as digits as its factorization.

226721067073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 226721067073 in words is "two hundred twenty-six billion, seven hundred twenty-one million, sixty-seven thousand, seventy-three".