200211202211221 has 8 divisors (see below), whose sum is σ = 202461047438040. Its totient is φ = 197961363232512.

The previous prime is 200211202211179. The next prime is 200211202211353. The reversal of 200211202211221 is 122112202112002.

It can be written as a sum of positive squares in 4 ways, for example, as 2042938510596 + 198168263700625 = 1429314^2 + 14077225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200211202211221 - 2²⁷ = 200211067993493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211202211021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99200071 + ... + 101198203.

It is an arithmetic number, because the mean of its divisors is an integer number (25307630929755).

Almost surely, 2^{200211202211221} is an apocalyptic number.

It is an amenable number.

200211202211221 is a deficient number, since it is larger than the sum of its proper divisors (2249845226819).

200211202211221 is a wasteful number, since it uses less digits than its factorization.

200211202211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124055.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200211202211221 its reverse (122112202112002), we get a palindrome (322323404323223).

The spelling of 200211202211221 in words is "two hundred trillion, two hundred eleven billion, two hundred two million, two hundred eleven thousand, two hundred twenty-one".