200211101211221 has 8 divisors (see below), whose sum is σ = 208312128433080. Its totient is φ = 192189887065792.

The previous prime is 200211101211217. The next prime is 200211101211259. The reversal of 200211101211221 is 122112101112002.

200211101211221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14826265539121 + 185384835672100 = 3850489^2 + 13615610^2 .

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 200211101211221 - 2² = 200211101211217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200211101211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211101211421) 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, 19953263990 + ... + 19953274023.

It is an arithmetic number, because the mean of its divisors is an integer number (26039016054135).

Almost surely, 2^{200211101211221} is an apocalyptic number.

It is an amenable number.

200211101211221 is a deficient number, since it is larger than the sum of its proper divisors (8101027221859).

200211101211221 is a wasteful number, since it uses less digits than its factorization.

200211101211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39906538215.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 200211101211221 its reverse (122112101112002), we get a palindrome (322323202323223).

The spelling of 200211101211221 in words is "two hundred trillion, two hundred eleven billion, one hundred one million, two hundred eleven thousand, two hundred twenty-one".