211211200012012 has 24 divisors (see below), whose sum is σ = 374910757835040. Its totient is φ = 104094517201920.

The previous prime is 211211200011967. The next prime is 211211200012013. The reversal of 211211200012012 is 210210002112112.

It is a super-2 number, since 2×211211200012012² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211200012013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83320437 + ... + 85817932.

It is an arithmetic number, because the mean of its divisors is an integer number (15621281576460).

Almost surely, 2^{211211200012012} is an apocalyptic number.

It is an amenable number.

211211200012012 is a deficient number, since it is larger than the sum of its proper divisors (163699557823028).

211211200012012 is a wasteful number, since it uses less digits than its factorization.

211211200012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169142841 (or 169142839 counting only the distinct ones).

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

Adding to 211211200012012 its reverse (210210002112112), we get a palindrome (421421202124124).

The spelling of 211211200012012 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred million, twelve thousand, twelve".