200243221951 has 2 divisors, whose sum is σ = 200243221952. Its totient is φ = 200243221950.

The previous prime is 200243221921. The next prime is 200243221957. The reversal of 200243221951 is 159122342002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200243221951 - 2²¹ = 200241124799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200243221957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100121610975 + 100121610976.

It is an arithmetic number, because the mean of its divisors is an integer number (100121610976).

Almost surely, 2^200243221951 is an apocalyptic number.

200243221951 is a deficient number, since it is larger than the sum of its proper divisors (1).

200243221951 is an equidigital number, since it uses as much as digits as its factorization.

200243221951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 200243221951 its reverse (159122342002), we get a palindrome (359365563953).

The spelling of 200243221951 in words is "two hundred billion, two hundred forty-three million, two hundred twenty-one thousand, nine hundred fifty-one".