221230112 has 24 divisors (see below), whose sum is σ = 461168316. Its totient is φ = 104108032.

The previous prime is 221230073. The next prime is 221230127. The reversal of 221230112 is 211032122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 217975696 + 3254416 = 14764^2 + 1804^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 202793 + ... + 203880.

Almost surely, 2^221230112 is an apocalyptic number.

It is an amenable number.

221230112 is an abundant number, since it is smaller than the sum of its proper divisors (239938204).

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

221230112 is a wasteful number, since it uses less digits than its factorization.

221230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406700 (or 406692 counting only the distinct ones).

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

The square root of 221230112 is about 14873.8062378128. The cubic root of 221230112 is about 604.8041275625.

Adding to 221230112 its reverse (211032122), we get a palindrome (432262234).

The spelling of 221230112 in words is "two hundred twenty-one million, two hundred thirty thousand, one hundred twelve".