211225223 has 24 divisors (see below), whose sum is σ = 247699200. Its totient is φ = 179459280.

The previous prime is 211225219. The next prime is 211225243. The reversal of 211225223 is 322522112.

It is not a de Polignac number, because 211225223 - 2² = 211225219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211225195 and 211225204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211225243) 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 23 ways as a sum of consecutive naturals, for example, 181040 + ... + 182202.

It is an arithmetic number, because the mean of its divisors is an integer number (10320800).

Almost surely, 2^211225223 is an apocalyptic number.

211225223 is a deficient number, since it is larger than the sum of its proper divisors (36473977).

211225223 is a wasteful number, since it uses less digits than its factorization.

211225223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1272 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 211225223 is about 14533.5894740425. The cubic root of 211225223 is about 595.5459273985.

Adding to 211225223 its reverse (322522112), we get a palindrome (533747335).

The spelling of 211225223 in words is "two hundred eleven million, two hundred twenty-five thousand, two hundred twenty-three".