221068422 has 24 divisors (see below), whose sum is σ = 479779560. Its totient is φ = 73566720.

The previous prime is 221068417. The next prime is 221068423. The reversal of 221068422 is 224860122.

It is a happy number.

221068422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221068423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1222 + ... + 21062.

It is an arithmetic number, because the mean of its divisors is an integer number (19990815).

Almost surely, 2^221068422 is an apocalyptic number.

221068422 is an abundant number, since it is smaller than the sum of its proper divisors (258711138).

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

221068422 is a wasteful number, since it uses less digits than its factorization.

221068422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20468 (or 20465 counting only the distinct ones).

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

The square root of 221068422 is about 14868.3698501214. The cubic root of 221068422 is about 604.6567476659.

The spelling of 221068422 in words is "two hundred twenty-one million, sixty-eight thousand, four hundred twenty-two".