22112211020 has 48 divisors (see below), whose sum is σ = 50071845600. Its totient is φ = 8174983680.

The previous prime is 22112211013. The next prime is 22112211089. The reversal of 22112211020 is 2011221122.

It is a junction number, because it is equal to n+sod(n) for n = 22112210986 and 22112211004.

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 15 ways as a sum of consecutive naturals, for example, 694055 + ... + 725214.

It is an arithmetic number, because the mean of its divisors is an integer number (1043163450).

Almost surely, 2^22112211020 is an apocalyptic number.

22112211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112211020 is an abundant number, since it is smaller than the sum of its proper divisors (27959634580).

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

22112211020 is a wasteful number, since it uses less digits than its factorization.

22112211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419338 (or 1419336 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112211020 its reverse (2011221122), we get a palindrome (24123432142).

The spelling of 22112211020 in words is "twenty-two billion, one hundred twelve million, two hundred eleven thousand, twenty".