200660024221 has 2 divisors, whose sum is σ = 200660024222. Its totient is φ = 200660024220.

The previous prime is 200660024167. The next prime is 200660024261. The reversal of 200660024221 is 122420066002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196714425625 + 3945598596 = 443525^2 + 62814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200660024221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200660024261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100330012110 + 100330012111.

It is an arithmetic number, because the mean of its divisors is an integer number (100330012111).

Almost surely, 2^200660024221 is an apocalyptic number.

It is an amenable number.

200660024221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200660024221 is an equidigital number, since it uses as much as digits as its factorization.

200660024221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 200660024221 in words is "two hundred billion, six hundred sixty million, twenty-four thousand, two hundred twenty-one".