222021468 has 36 divisors (see below), whose sum is σ = 562843008. Its totient is φ = 73793280.

The previous prime is 222021463. The next prime is 222021487. The reversal of 222021468 is 864120222.

It is a happy number.

222021468 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3973 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (15634528).

Almost surely, 2^222021468 is an apocalyptic number.

It is an amenable number.

222021468 is an abundant number, since it is smaller than the sum of its proper divisors (340821540).

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

222021468 is a wasteful number, since it uses less digits than its factorization.

222021468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17834 (or 17829 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 222021468 is about 14900.3848272452. The cubic root of 222021468 is about 605.5244120086.

The spelling of 222021468 in words is "two hundred twenty-two million, twenty-one thousand, four hundred sixty-eight".