283221222 has 8 divisors (see below), whose sum is σ = 566442456. Its totient is φ = 94407072.

The previous prime is 283221217. The next prime is 283221233. The reversal of 283221222 is 222122382.

283221222 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.

283221222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 283221192 and 283221201.

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, 23601763 + ... + 23601774.

It is an arithmetic number, because the mean of its divisors is an integer number (70805307).

Almost surely, 2^283221222 is an apocalyptic number.

283221222 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.

283221222 is a wasteful number, since it uses less digits than its factorization.

283221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47203542.

The product of its digits is 1536, while the sum is 24.

The square root of 283221222 is about 16829.1776982715. The cubic root of 283221222 is about 656.7124716890.

The spelling of 283221222 in words is "two hundred eighty-three million, two hundred twenty-one thousand, two hundred twenty-two".