220240212 has 24 divisors (see below), whose sum is σ = 514231200. Its totient is φ = 73365216.

The previous prime is 220240211. The next prime is 220240217. The reversal of 220240212 is 212042022.

It is a junction number, because it is equal to n+sod(n) for n = 220240191 and 220240200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220240211) 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, 16339 + ... + 26597.

It is an arithmetic number, because the mean of its divisors is an integer number (21426300).

Almost surely, 2^220240212 is an apocalyptic number.

It is an amenable number.

220240212 is an abundant number, since it is smaller than the sum of its proper divisors (293990988).

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

220240212 is a wasteful number, since it uses less digits than its factorization.

220240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055 (or 12053 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220240212 is about 14840.4923098932. The cubic root of 220240212 is about 603.9007080617.

Adding to 220240212 its reverse (212042022), we get a palindrome (432282234).

The spelling of 220240212 in words is "two hundred twenty million, two hundred forty thousand, two hundred twelve".