200221222009 has 2 divisors, whose sum is σ = 200221222010. Its totient is φ = 200221222008.

The previous prime is 200221221989. The next prime is 200221222049. The reversal of 200221222009 is 900222122002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105647751225 + 94573470784 = 325035^2 + 307528^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221222009 - 2²⁵ = 200187667577 is a prime.

It is not a weakly prime, because it can be changed into another prime (200221222049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110611004 + 100110611005.

It is an arithmetic number, because the mean of its divisors is an integer number (100110611005).

Almost surely, 2^200221222009 is an apocalyptic number.

It is an amenable number.

200221222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221222009 is an equidigital number, since it uses as much as digits as its factorization.

200221222009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 200221222009 in words is "two hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, nine".