211001201221012 has 12 divisors (see below), whose sum is σ = 369850565839860. Its totient is φ = 105329610981056.

The previous prime is 211001201220983. The next prime is 211001201221043. The reversal of 211001201221012 is 210122102100112.

It can be written as a sum of positive squares in 2 ways, for example, as 43217002673296 + 167784198547716 = 6573964^2 + 12953154^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42747404587 + ... + 42747409522.

It is an arithmetic number, because the mean of its divisors is an integer number (30820880486655).

Almost surely, 2^{211001201221012} is an apocalyptic number.

It is an amenable number.

211001201221012 is a deficient number, since it is larger than the sum of its proper divisors (158849364618848).

211001201221012 is a wasteful number, since it uses less digits than its factorization.

211001201221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85494814730 (or 85494814728 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211001201221012 its reverse (210122102100112), we get a palindrome (421123303321124).

The spelling of 211001201221012 in words is "two hundred eleven trillion, one billion, two hundred one million, two hundred twenty-one thousand, twelve".