22220212120 has 32 divisors (see below), whose sum is σ = 50086926000. Its totient is φ = 8871827328.

The previous prime is 22220212081. The next prime is 22220212139. The reversal of 22220212120 is 2121202222.

It is a junction number, because it is equal to n+sod(n) for n = 22220212094 and 22220212103.

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, 485895 + ... + 529654.

Almost surely, 2^22220212120 is an apocalyptic number.

22220212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220212120 is an abundant number, since it is smaller than the sum of its proper divisors (27866713880).

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

22220212120 is a wasteful number, since it uses less digits than its factorization.

22220212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016107 (or 1016103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22220212120 its reverse (2121202222), we get a palindrome (24341414342).

The spelling of 22220212120 in words is "twenty-two billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".