211146226 has 8 divisors (see below), whose sum is σ = 317269980. Its totient is φ = 105389568.

The previous prime is 211146217. The next prime is 211146293. The reversal of 211146226 is 622641112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 167573025 + 43573201 = 12945^2 + 6601^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 211146226.

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, 90331 + ... + 92638.

Almost surely, 2^211146226 is an apocalyptic number.

211146226 is a deficient number, since it is larger than the sum of its proper divisors (106123754).

211146226 is a wasteful number, since it uses less digits than its factorization.

211146226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183548.

The product of its digits is 1152, while the sum is 25.

The square root of 211146226 is about 14530.8714810916. The cubic root of 211146226 is about 595.4716745746.

Adding to 211146226 its reverse (622641112), we get a palindrome (833787338).

The spelling of 211146226 in words is "two hundred eleven million, one hundred forty-six thousand, two hundred twenty-six".