22122221110 has 32 divisors (see below), whose sum is σ = 43846002432. Its totient is φ = 7969258080.

The previous prime is 22122221087. The next prime is 22122221111. The reversal of 22122221110 is 1112222122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122221111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 928002 + ... + 951541.

It is an arithmetic number, because the mean of its divisors is an integer number (1370187576).

Almost surely, 2^22122221110 is an apocalyptic number.

22122221110 is a deficient number, since it is larger than the sum of its proper divisors (21723781322).

22122221110 is a wasteful number, since it uses less digits than its factorization.

22122221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879668.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22122221110 its reverse (1112222122), we get a palindrome (23234443232).

The spelling of 22122221110 in words is "twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".