22282222 has 4 divisors (see below), whose sum is σ = 33423336. Its totient is φ = 11141110.

The previous prime is 22282199. The next prime is 22282243. The reversal of 22282222 is 22228222.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 22282193 and 22282202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570554 + ... + 5570557.

It is an arithmetic number, because the mean of its divisors is an integer number (8355834).

Almost surely, 2^22282222 is an apocalyptic number.

22282222 is a deficient number, since it is larger than the sum of its proper divisors (11141114).

22282222 is a wasteful number, since it uses less digits than its factorization.

22282222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11141113.

The product of its digits is 1024, while the sum is 22.

The square root of 22282222 is about 4720.4048555182. The cubic root of 22282222 is about 281.3970232455.

The spelling of 22282222 in words is "twenty-two million, two hundred eighty-two thousand, two hundred twenty-two".