211013228 has 12 divisors (see below), whose sum is σ = 372092952. Its totient is φ = 104700960.

The previous prime is 211013161. The next prime is 211013237. The reversal of 211013228 is 822310112.

211013228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200825 + ... + 201872.

It is an arithmetic number, because the mean of its divisors is an integer number (31007746).

Almost surely, 2^211013228 is an apocalyptic number.

It is an amenable number.

211013228 is a deficient number, since it is larger than the sum of its proper divisors (161079724).

211013228 is a wasteful number, since it uses less digits than its factorization.

211013228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402832 (or 402830 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 211013228 is about 14526.2943657355. The cubic root of 211013228 is about 595.3466219395.

The spelling of 211013228 in words is "two hundred eleven million, thirteen thousand, two hundred twenty-eight".