211225112 has 32 divisors (see below), whose sum is σ = 463669920. Its totient is φ = 88316160.

The previous prime is 211225111. The next prime is 211225117. The reversal of 211225112 is 211522112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211225111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43703 + ... + 48294.

It is an arithmetic number, because the mean of its divisors is an integer number (14489685).

Almost surely, 2^211225112 is an apocalyptic number.

It is an amenable number.

211225112 is an abundant number, since it is smaller than the sum of its proper divisors (252444808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211225112 is a wasteful number, since it uses less digits than its factorization.

211225112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92051 (or 92047 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 211225112 is about 14533.5856553020. The cubic root of 211225112 is about 595.5458230776.

Adding to 211225112 its reverse (211522112), we get a palindrome (422747224).

The spelling of 211225112 in words is "two hundred eleven million, two hundred twenty-five thousand, one hundred twelve".