200212202112221 has 8 divisors (see below), whose sum is σ = 215662177218264. Its totient is φ = 184769232217920.

The previous prime is 200212202112217. The next prime is 200212202112229. The reversal of 200212202112221 is 122211202212002.

It can be written as a sum of positive squares in 4 ways, for example, as 46601238780100 + 153610963332121 = 6826510^2 + 12393989^2 .

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 200212202112221 - 2² = 200212202112217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200212202112193 and 200212202112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212202112229) 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, 1751243570 + ... + 1751357891.

It is an arithmetic number, because the mean of its divisors is an integer number (26957772152283).

Almost surely, 2^{200212202112221} is an apocalyptic number.

It is an amenable number.

200212202112221 is a deficient number, since it is larger than the sum of its proper divisors (15449975106043).

200212202112221 is a wasteful number, since it uses less digits than its factorization.

200212202112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502605871.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 200212202112221 its reverse (122211202212002), we get a palindrome (322423404324223).

The spelling of 200212202112221 in words is "two hundred trillion, two hundred twelve billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".