222040212 has 24 divisors (see below), whose sum is σ = 518799456. Its totient is φ = 73912608.

The previous prime is 222040207. The next prime is 222040223. The reversal of 222040212 is 212040222.

222040212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222040191 and 222040200.

It is a congruent number.

It is an unprimeable number.

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, 3138 + ... + 21305.

It is an arithmetic number, because the mean of its divisors is an integer number (21616644).

Almost surely, 2^222040212 is an apocalyptic number.

It is an amenable number.

222040212 is an abundant number, since it is smaller than the sum of its proper divisors (296759244).

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

222040212 is a wasteful number, since it uses less digits than its factorization.

222040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25207 (or 25205 counting only the distinct ones).

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

The square root of 222040212 is about 14901.0137910144. The cubic root of 222040212 is about 605.5414518476.

Adding to 222040212 its reverse (212040222), we get a palindrome (434080434).

The spelling of 222040212 in words is "two hundred twenty-two million, forty thousand, two hundred twelve".