211212100011 has 32 divisors (see below), whose sum is σ = 310347648000. Its totient is φ = 126703872000.

The previous prime is 211212100003. The next prime is 211212100013. The reversal of 211212100011 is 110001212112.

211212100011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211212100011 - 2³ = 211212100003 is a prime.

It is a super-2 number, since 2×211212100011² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211212100011.

It is not an unprimeable number, because it can be changed into a prime (211212100013) 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 31 ways as a sum of consecutive naturals, for example, 15935115 + ... + 15948363.

It is an arithmetic number, because the mean of its divisors is an integer number (9698364000).

Almost surely, 2^211212100011 is an apocalyptic number.

211212100011 is a deficient number, since it is larger than the sum of its proper divisors (99135547989).

211212100011 is a wasteful number, since it uses less digits than its factorization.

211212100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18147.

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

Adding to 211212100011 its reverse (110001212112), we get a palindrome (321213312123).

The spelling of 211212100011 in words is "two hundred eleven billion, two hundred twelve million, one hundred thousand, eleven".