222021006 has 8 divisors (see below), whose sum is σ = 444042024. Its totient is φ = 74007000.

The previous prime is 222020999. The next prime is 222021011. The reversal of 222021006 is 600120222.

222021006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

222021006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18501745 + ... + 18501756.

It is an arithmetic number, because the mean of its divisors is an integer number (55505253).

Almost surely, 2^222021006 is an apocalyptic number.

222021006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222021006 is a wasteful number, since it uses less digits than its factorization.

222021006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37003506.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222021006 is about 14900.3693242819. The cubic root of 222021006 is about 605.5239920005.

Adding to 222021006 its reverse (600120222), we get a palindrome (822141228).

The spelling of 222021006 in words is "two hundred twenty-two million, twenty-one thousand, six".