22122220110 has 32 divisors (see below), whose sum is σ = 53123167872. Its totient is φ = 5895943200.

The previous prime is 22122220033. The next prime is 22122220121. The reversal of 22122220110 is 1102222122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22122220110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152716 + ... + 259935.

It is an arithmetic number, because the mean of its divisors is an integer number (1660098996).

Almost surely, 2^22122220110 is an apocalyptic number.

22122220110 is an abundant number, since it is smaller than the sum of its proper divisors (31000947762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122220110 is a wasteful number, since it uses less digits than its factorization.

22122220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414448.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22122220110 its reverse (1102222122), we get a palindrome (23224442232).

The spelling of 22122220110 in words is "twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred ten".