212203112 has 64 divisors (see below), whose sum is σ = 465393600. Its totient is φ = 89635840.

The previous prime is 212203097. The next prime is 212203139. The reversal of 212203112 is 211302212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123314 + ... + 125022.

It is an arithmetic number, because the mean of its divisors is an integer number (7271775).

Almost surely, 2^212203112 is an apocalyptic number.

212203112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212203112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232696800).

212203112 is an abundant number, since it is smaller than the sum of its proper divisors (253190488).

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

212203112 is a wasteful number, since it uses less digits than its factorization.

212203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212203112 is about 14567.1930034581. The cubic root of 212203112 is about 596.4635599007.

Adding to 212203112 its reverse (211302212), we get a palindrome (423505324).

The spelling of 212203112 in words is "two hundred twelve million, two hundred three thousand, one hundred twelve".