211420226 has 8 divisors (see below), whose sum is σ = 317192124. Its totient is φ = 105689520.

The previous prime is 211420219. The next prime is 211420229. The reversal of 211420226 is 622024112.

It is a happy number.

211420226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206353225 + 5067001 = 14365^2 + 2251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 211420198 and 211420207.

It is not an unprimeable number, because it can be changed into a prime (211420229) 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, 14036 + ... + 24896.

Almost surely, 2^211420226 is an apocalyptic number.

211420226 is a deficient number, since it is larger than the sum of its proper divisors (105771898).

211420226 is a wasteful number, since it uses less digits than its factorization.

211420226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20596.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 211420226 is about 14540.2966269605. The cubic root of 211420226 is about 595.7291402445.

Adding to 211420226 its reverse (622024112), we get a palindrome (833444338).

The spelling of 211420226 in words is "two hundred eleven million, four hundred twenty thousand, two hundred twenty-six".