211204424 has 16 divisors (see below), whose sum is σ = 402721200. Its totient is φ = 103812112.

The previous prime is 211204391. The next prime is 211204439. The reversal of 211204424 is 424402112.

It is a junction number, because it is equal to n+sod(n) for n = 211204396 and 211204405.

It is an unprimeable number.

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, 223262 + ... + 224205.

It is an arithmetic number, because the mean of its divisors is an integer number (25170075).

Almost surely, 2^211204424 is an apocalyptic number.

It is an amenable number.

211204424 is a deficient number, since it is larger than the sum of its proper divisors (191516776).

211204424 is a wasteful number, since it uses less digits than its factorization.

211204424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447532 (or 447528 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 211204424 is about 14532.8739071114. The cubic root of 211204424 is about 595.5263792811.

Adding to 211204424 its reverse (424402112), we get a palindrome (635606536).

The spelling of 211204424 in words is "two hundred eleven million, two hundred four thousand, four hundred twenty-four".