211000000012 has 24 divisors (see below), whose sum is σ = 385370852832. Its totient is φ = 100895625600.

The previous prime is 211000000009. The next prime is 211000000027. The reversal of 211000000012 is 210000000112.

It is a junction number, because it is equal to n+sod(n) for n = 210999999941 and 211000000004.

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, 346062 + ... + 736042.

It is an arithmetic number, because the mean of its divisors is an integer number (16057118868).

Almost surely, 2^211000000012 is an apocalyptic number.

It is an amenable number.

211000000012 is a deficient number, since it is larger than the sum of its proper divisors (174370852820).

211000000012 is a wasteful number, since it uses less digits than its factorization.

211000000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395889 (or 395887 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 211000000012 its reverse (210000000112), we get a palindrome (421000000124).

The spelling of 211000000012 in words is "two hundred eleven billion, twelve", and thus it is an aban number.