200368891221 has 4 divisors (see below), whose sum is σ = 267158521632. Its totient is φ = 133579260812.

The previous prime is 200368891213. The next prime is 200368891231. The reversal of 200368891221 is 122198863002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200368891221 - 2³ = 200368891213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200368891231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33394815201 + ... + 33394815206.

It is an arithmetic number, because the mean of its divisors is an integer number (66789630408).

Almost surely, 2^200368891221 is an apocalyptic number.

It is an amenable number.

200368891221 is a deficient number, since it is larger than the sum of its proper divisors (66789630411).

200368891221 is an equidigital number, since it uses as much as digits as its factorization.

200368891221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66789630410.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 200368891221 in words is "two hundred billion, three hundred sixty-eight million, eight hundred ninety-one thousand, two hundred twenty-one".