212111200011 has 24 divisors (see below), whose sum is σ = 299228310864. Its totient is φ = 133630617600.

The previous prime is 212111199977. The next prime is 212111200127. The reversal of 212111200011 is 110002111212.

It is not a de Polignac number, because 212111200011 - 2⁶ = 212111199947 is a prime.

It is a super-2 number, since 2×212111200011² (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 212111200011.

It is not an unprimeable number, because it can be changed into a prime (212111200711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190075 + ... + 678491.

It is an arithmetic number, because the mean of its divisors is an integer number (12467846286).

Almost surely, 2^212111200011 is an apocalyptic number.

212111200011 is a deficient number, since it is larger than the sum of its proper divisors (87117110853).

212111200011 is a wasteful number, since it uses less digits than its factorization.

212111200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488859 (or 488840 counting only the distinct ones).

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

Adding to 212111200011 its reverse (110002111212), we get a palindrome (322113311223).

The spelling of 212111200011 in words is "two hundred twelve billion, one hundred eleven million, two hundred thousand, eleven".