211212102012 has 24 divisors (see below), whose sum is σ = 492991564800. Its totient is φ = 70380701616.

The previous prime is 211212101953. The next prime is 211212102109. The reversal of 211212102012 is 210201212112.

It is a super-2 number, since 2×211212102012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212101982 and 211212102000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2878812 + ... + 2951267.

It is an arithmetic number, because the mean of its divisors is an integer number (20541315200).

Almost surely, 2^211212102012 is an apocalyptic number.

It is an amenable number.

211212102012 is an abundant number, since it is smaller than the sum of its proper divisors (281779462788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211212102012 is a wasteful number, since it uses less digits than its factorization.

211212102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833105 (or 5833103 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211212102012 its reverse (210201212112), we get a palindrome (421413314124).

The spelling of 211212102012 in words is "two hundred eleven billion, two hundred twelve million, one hundred two thousand, twelve".