200221100069 has 2 divisors, whose sum is σ = 200221100070. Its totient is φ = 200221100068.

The previous prime is 200221100021. The next prime is 200221100099. The reversal of 200221100069 is 960001122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148022559169 + 52198540900 = 384737^2 + 228470^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221100069 - 2³⁶ = 131501623333 is a prime.

It is a super-2 number, since 2×200221100069² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200221100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110550034 + 100110550035.

It is an arithmetic number, because the mean of its divisors is an integer number (100110550035).

Almost surely, 2^200221100069 is an apocalyptic number.

It is an amenable number.

200221100069 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221100069 is an equidigital number, since it uses as much as digits as its factorization.

200221100069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 200221100069 in words is "two hundred billion, two hundred twenty-one million, one hundred thousand, sixty-nine".