200207952221 has 2 divisors, whose sum is σ = 200207952222. Its totient is φ = 200207952220.

The previous prime is 200207952193. The next prime is 200207952229. The reversal of 200207952221 is 122259702002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194493348196 + 5714604025 = 441014^2 + 75595^2 .

It is a cyclic number.

It is not a de Polignac number, because 200207952221 - 2¹⁰ = 200207951197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200207952229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100103976110 + 100103976111.

It is an arithmetic number, because the mean of its divisors is an integer number (100103976111).

Almost surely, 2^200207952221 is an apocalyptic number.

It is an amenable number.

200207952221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200207952221 is an equidigital number, since it uses as much as digits as its factorization.

200207952221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 200207952221 in words is "two hundred billion, two hundred seven million, nine hundred fifty-two thousand, two hundred twenty-one".