201201211011 has 4 divisors (see below), whose sum is σ = 268268281352. Its totient is φ = 134134140672.

The previous prime is 201201210989. The next prime is 201201211021. The reversal of 201201211011 is 110112102102.

201201211011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201201211011 - 2¹¹ = 201201208963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33533535166 + ... + 33533535171.

It is an arithmetic number, because the mean of its divisors is an integer number (67067070338).

Almost surely, 2^201201211011 is an apocalyptic number.

201201211011 is a deficient number, since it is larger than the sum of its proper divisors (67067070341).

201201211011 is an equidigital number, since it uses as much as digits as its factorization.

201201211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67067070340.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201201211011 its reverse (110112102102), we get a palindrome (311313313113).

The spelling of 201201211011 in words is "two hundred one billion, two hundred one million, two hundred eleven thousand, eleven".