22222221110 has 8 divisors (see below), whose sum is σ = 39999998016. Its totient is φ = 8888888440.

The previous prime is 22222221083. The next prime is 22222221139. The reversal of 22222221110 is 1112222222.

It is a happy number.

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

It is a super-2 number, since 2×22222221110² (a number of 21 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111111046 + ... + 1111111065.

It is an arithmetic number, because the mean of its divisors is an integer number (4999999752).

Almost surely, 2^22222221110 is an apocalyptic number.

22222221110 is a deficient number, since it is larger than the sum of its proper divisors (17777776906).

22222221110 is a wasteful number, since it uses less digits than its factorization.

22222221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222222118.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22222221110 its reverse (1112222222), we get a palindrome (23334443332).

The spelling of 22222221110 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".