200211101211421 has 2 divisors, whose sum is σ = 200211101211422. Its totient is φ = 200211101211420.

The previous prime is 200211101211283. The next prime is 200211101211439. The reversal of 200211101211421 is 124112101112002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139861726479225 + 60349374732196 = 11826315^2 + 7768486^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211101211421 - 2¹⁵ = 200211101178653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211101271421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105550605710 + 100105550605711.

It is an arithmetic number, because the mean of its divisors is an integer number (100105550605711).

Almost surely, 2^{200211101211421} is an apocalyptic number.

It is an amenable number.

200211101211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211101211421 is an equidigital number, since it uses as much as digits as its factorization.

200211101211421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 200211101211421 its reverse (124112101112002), we get a palindrome (324323202323423).

The spelling of 200211101211421 in words is "two hundred trillion, two hundred eleven billion, one hundred one million, two hundred eleven thousand, four hundred twenty-one".