201000212111911 has 2 divisors, whose sum is σ = 201000212111912. Its totient is φ = 201000212111910.

The previous prime is 201000212111873. The next prime is 201000212112013. The reversal of 201000212111911 is 119111212000102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201000212111911 - 2¹⁵ = 201000212079143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201000212111311) 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, 100500106055955 + 100500106055956.

It is an arithmetic number, because the mean of its divisors is an integer number (100500106055956).

Almost surely, 2^{201000212111911} is an apocalyptic number.

201000212111911 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000212111911 is an equidigital number, since it uses as much as digits as its factorization.

201000212111911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 201000212111911 in words is "two hundred one trillion, two hundred twelve million, one hundred eleven thousand, nine hundred eleven".