200228126909 has 2 divisors, whose sum is σ = 200228126910. Its totient is φ = 200228126908.

The previous prime is 200228126899. The next prime is 200228126929. The reversal of 200228126909 is 909621822002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199091762809 + 1136364100 = 446197^2 + 33710^2 .

It is a cyclic number.

It is not a de Polignac number, because 200228126909 - 2⁸ = 200228126653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200228126929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100114063454 + 100114063455.

It is an arithmetic number, because the mean of its divisors is an integer number (100114063455).

Almost surely, 2^200228126909 is an apocalyptic number.

It is an amenable number.

200228126909 is a deficient number, since it is larger than the sum of its proper divisors (1).

200228126909 is an equidigital number, since it uses as much as digits as its factorization.

200228126909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 200228126909 in words is "two hundred billion, two hundred twenty-eight million, one hundred twenty-six thousand, nine hundred nine".