22000222 has 4 divisors (see below), whose sum is σ = 33000336. Its totient is φ = 11000110.

The previous prime is 22000211. The next prime is 22000243. The reversal of 22000222 is 22200022.

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

22000222 is a modest number, since divided by 222 gives 22 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22000199 and 22000208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500054 + ... + 5500057.

It is an arithmetic number, because the mean of its divisors is an integer number (8250084).

Almost surely, 2^22000222 is an apocalyptic number.

22000222 is a deficient number, since it is larger than the sum of its proper divisors (11000114).

22000222 is a wasteful number, since it uses less digits than its factorization.

22000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000113.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 22000222 is about 4690.4394250432. The cubic root of 22000222 is about 280.2048755665.

Adding to 22000222 its reverse (22200022), we get a palindrome (44200244).

It can be divided in two parts, 2200022 and 2, that multiplied together give a palindrome (4400044).

The spelling of 22000222 in words is "twenty-two million, two hundred twenty-two", and thus it is an aban number.