212011001212 has 18 divisors (see below), whose sum is σ = 391574338008. Its totient is φ = 100426263048.

The previous prime is 212011001203. The next prime is 212011001219. The reversal of 212011001212 is 212100110212.

It is a junction number, because it is equal to n+sod(n) for n = 212011001192 and 212011001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011001219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73409568 + ... + 73412455.

Almost surely, 2^212011001212 is an apocalyptic number.

It is an amenable number.

212011001212 is a deficient number, since it is larger than the sum of its proper divisors (179563336796).

212011001212 is a wasteful number, since it uses less digits than its factorization.

212011001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146822065 (or 146822044 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212011001212 its reverse (212100110212), we get a palindrome (424111111424).

The spelling of 212011001212 in words is "two hundred twelve billion, eleven million, one thousand, two hundred twelve".