211230472 has 16 divisors (see below), whose sum is σ = 396655740. Its totient is φ = 105455616.

The previous prime is 211230463. The next prime is 211230473. The reversal of 211230472 is 274032112.

It can be written as a sum of positive squares in 2 ways, for example, as 180472356 + 30758116 = 13434^2 + 5546^2 .

It is not an unprimeable number, because it can be changed into a prime (211230473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14233 + ... + 25000.

Almost surely, 2^211230472 is an apocalyptic number.

It is an amenable number.

211230472 is a deficient number, since it is larger than the sum of its proper divisors (185425268).

211230472 is a wasteful number, since it uses less digits than its factorization.

211230472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39912 (or 39908 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 211230472 is about 14533.7700546004. The cubic root of 211230472 is about 595.5508605131.

Adding to 211230472 its reverse (274032112), we get a palindrome (485262584).

The spelling of 211230472 in words is "two hundred eleven million, two hundred thirty thousand, four hundred seventy-two".