200221250137 has 2 divisors, whose sum is σ = 200221250138. Its totient is φ = 200221250136.

The previous prime is 200221250029. The next prime is 200221250147. The reversal of 200221250137 is 731052122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125942653456 + 74278596681 = 354884^2 + 272541^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221250137 - 2¹⁵ = 200221217369 is a prime.

It is not a weakly prime, because it can be changed into another prime (200221250147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110625068 + 100110625069.

It is an arithmetic number, because the mean of its divisors is an integer number (100110625069).

Almost surely, 2^200221250137 is an apocalyptic number.

It is an amenable number.

200221250137 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221250137 is an equidigital number, since it uses as much as digits as its factorization.

200221250137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 200221250137 its reverse (731052122002), we get a palindrome (931273372139).

The spelling of 200221250137 in words is "two hundred billion, two hundred twenty-one million, two hundred fifty thousand, one hundred thirty-seven".