20212222110 has 16 divisors (see below), whose sum is σ = 48509333136. Its totient is φ = 5389925888.

The previous prime is 20212222087. The next prime is 20212222123. The reversal of 20212222110 is 1122221202.

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 20212222110.

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 7 ways as a sum of consecutive naturals, for example, 336870339 + ... + 336870398.

It is an arithmetic number, because the mean of its divisors is an integer number (3031833321).

Almost surely, 2^20212222110 is an apocalyptic number.

20212222110 is an abundant number, since it is smaller than the sum of its proper divisors (28297111026).

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

20212222110 is a wasteful number, since it uses less digits than its factorization.

20212222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673740747.

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

Adding to 20212222110 its reverse (1122221202), we get a palindrome (21334443312).

The spelling of 20212222110 in words is "twenty billion, two hundred twelve million, two hundred twenty-two thousand, one hundred ten".