211163226 has 32 divisors (see below), whose sum is σ = 446307840.
Its totient is φ = 66420144.
The previous prime is 211163221. The next prime is 211163237. The reversal of 211163226 is 622361112.
It can be divided in two parts, 21116 and 3226, that added together give a palindrome (24342).
It is a nude number because it is divisible by every one of its digits.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 211163196 and 211163205.
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 15 ways as a sum of consecutive naturals, for example, 26461 + ... + 33503.
It is an arithmetic number, because the mean of its divisors is an integer number (13947120).
Almost surely, 2211163226 is an apocalyptic number.
211163226 is the 9191-st centered pentagonal number.
211163226 is an abundant number, since it is smaller than the sum of its proper divisors (235144614).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211163226 is a wasteful number, since it uses less digits than its factorization.
211163226 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7330.
The product of its digits is 864, while the sum is 24.
The square root of 211163226 is about 14531.4564307918.
The cubic root of 211163226 is about 595.4876552009.
The spelling of 211163226 in words is "two hundred eleven million, one hundred sixty-three thousand, two hundred twenty-six".