200121220012211 has 8 divisors (see below), whose sum is σ = 207568183810800. Its totient is φ = 192710671685280.

The previous prime is 200121220012201. The next prime is 200121220012213. The reversal of 200121220012211 is 112210022121002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121220012211 is a prime.

It is a super-4 number, since 4×200121220012211⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200121220012211.

It is not an unprimeable number, because it can be changed into a prime (200121220012213) 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, 9103856720 + ... + 9103878701.

It is an arithmetic number, because the mean of its divisors is an integer number (25946022976350).

Almost surely, 2^{200121220012211} is an apocalyptic number.

200121220012211 is a deficient number, since it is larger than the sum of its proper divisors (7446963798589).

200121220012211 is a wasteful number, since it uses less digits than its factorization.

200121220012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18207735829.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200121220012211 its reverse (112210022121002), we get a palindrome (312331242133213).

The spelling of 200121220012211 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred eleven".