201544215211 has 2 divisors, whose sum is σ = 201544215212. Its totient is φ = 201544215210.

The previous prime is 201544215209. The next prime is 201544215217. The reversal of 201544215211 is 112512445102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201544215211 - 2¹ = 201544215209 is a prime.

Together with 201544215209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201544215211.

It is not a weakly prime, because it can be changed into another prime (201544215217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100772107605 + 100772107606.

It is an arithmetic number, because the mean of its divisors is an integer number (100772107606).

Almost surely, 2^201544215211 is an apocalyptic number.

201544215211 is a deficient number, since it is larger than the sum of its proper divisors (1).

201544215211 is an equidigital number, since it uses as much as digits as its factorization.

201544215211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 201544215211 in words is "two hundred one billion, five hundred forty-four million, two hundred fifteen thousand, two hundred eleven".