200202112220221 has 4 divisors (see below), whose sum is σ = 200202338769372. Its totient is φ = 200201885671072.

The previous prime is 200202112220167. The next prime is 200202112220239. The reversal of 200202112220221 is 122022211202002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84860741336121 + 115341370884100 = 9211989^2 + 10739710^2 .

It is a cyclic number.

It is not a de Polignac number, because 200202112220221 - 2¹⁵ = 200202112187453 is a prime.

It is a super-4 number, since 4×200202112220221⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200202112220261) 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, 111943810 + ... + 113718163.

It is an arithmetic number, because the mean of its divisors is an integer number (50050584692343).

Almost surely, 2^{200202112220221} is an apocalyptic number.

It is an amenable number.

200202112220221 is a deficient number, since it is larger than the sum of its proper divisors (226549151).

200202112220221 is an equidigital number, since it uses as much as digits as its factorization.

200202112220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226549150.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200202112220221 its reverse (122022211202002), we get a palindrome (322224323422223).

The spelling of 200202112220221 in words is "two hundred trillion, two hundred two billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-one".