200211001122221 has 2 divisors, whose sum is σ = 200211001122222. Its totient is φ = 200211001122220.

The previous prime is 200211001122193. The next prime is 200211001122233. The reversal of 200211001122221 is 122221100112002.

200211001122221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120126203244100 + 80084797878121 = 10960210^2 + 8949011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200211001122221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200211001122221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211001122421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105500561110 + 100105500561111.

It is an arithmetic number, because the mean of its divisors is an integer number (100105500561111).

Almost surely, 2^{200211001122221} is an apocalyptic number.

It is an amenable number.

200211001122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211001122221 is an equidigital number, since it uses as much as digits as its factorization.

200211001122221 is an evil number, because the sum of its binary digits is even.

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

Adding to 200211001122221 its reverse (122221100112002), we get a palindrome (322432101234223).

The spelling of 200211001122221 in words is "two hundred trillion, two hundred eleven billion, one million, one hundred twenty-two thousand, two hundred twenty-one".