211163228 has 12 divisors (see below), whose sum is σ = 369881400. Its totient is φ = 105482832.

The previous prime is 211163221. The next prime is 211163237. The reversal of 211163228 is 822361112.

It is a junction number, because it is equal to n+sod(n) for n = 211163197 and 211163206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211163221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19778 + ... + 28521.

It is an arithmetic number, because the mean of its divisors is an integer number (30823450).

Almost surely, 2^211163228 is an apocalyptic number.

It is an amenable number.

211163228 is a deficient number, since it is larger than the sum of its proper divisors (158718172).

211163228 is a wasteful number, since it uses less digits than its factorization.

211163228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49396 (or 49394 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 211163228 is about 14531.4564996080. The cubic root of 211163228 is about 595.4876570809.

The spelling of 211163228 in words is "two hundred eleven million, one hundred sixty-three thousand, two hundred twenty-eight".