211121000012 has 24 divisors (see below), whose sum is σ = 398596269456. Its totient is φ = 97265510208.

The previous prime is 211120999871. The next prime is 211121000021. The reversal of 211121000012 is 210000121112.

211121000012 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211120999957 and 211121000002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3615578 + ... + 3673505.

It is an arithmetic number, because the mean of its divisors is an integer number (16608177894).

Almost surely, 2^211121000012 is an apocalyptic number.

It is an amenable number.

211121000012 is a deficient number, since it is larger than the sum of its proper divisors (187475269444).

211121000012 is a wasteful number, since it uses less digits than its factorization.

211121000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289657 (or 7289655 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211121000012 its reverse (210000121112), we get a palindrome (421121121124).

The spelling of 211121000012 in words is "two hundred eleven billion, one hundred twenty-one million, twelve", and thus it is an aban number.