226821125149 has 2 divisors, whose sum is σ = 226821125150. Its totient is φ = 226821125148.

The previous prime is 226821125143. The next prime is 226821125177. The reversal of 226821125149 is 941521128622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125541245124 + 101279880025 = 354318^2 + 318245^2 .

It is a cyclic number.

It is not a de Polignac number, because 226821125149 - 2⁷ = 226821125021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226821125143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113410562574 + 113410562575.

It is an arithmetic number, because the mean of its divisors is an integer number (113410562575).

Almost surely, 2^226821125149 is an apocalyptic number.

It is an amenable number.

226821125149 is a deficient number, since it is larger than the sum of its proper divisors (1).

226821125149 is an equidigital number, since it uses as much as digits as its factorization.

226821125149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The spelling of 226821125149 in words is "two hundred twenty-six billion, eight hundred twenty-one million, one hundred twenty-five thousand, one hundred forty-nine".