22122266 has 8 divisors (see below), whose sum is σ = 33203520. Its totient is φ = 11054428.

The previous prime is 22122259. The next prime is 22122281. The reversal of 22122266 is 66222122.

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

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, 3965 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (4150440).

Almost surely, 2^22122266 is an apocalyptic number.

22122266 is a deficient number, since it is larger than the sum of its proper divisors (11081254).

22122266 is a wasteful number, since it uses less digits than its factorization.

22122266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708.

The product of its digits is 1152, while the sum is 23.

The square root of 22122266 is about 4703.4313006570. The cubic root of 22122266 is about 280.7220564478.

Adding to 22122266 its reverse (66222122), we get a palindrome (88344388).

The spelling of 22122266 in words is "twenty-two million, one hundred twenty-two thousand, two hundred sixty-six".