22120002120 has 32 divisors (see below), whose sum is σ = 66360006720. Its totient is φ = 5898667200.

The previous prime is 22120002119. The next prime is 22120002173. The reversal of 22120002120 is 2120002122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22120002096 and 22120002105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92166556 + ... + 92166795.

It is an arithmetic number, because the mean of its divisors is an integer number (2073750210).

Almost surely, 2^22120002120 is an apocalyptic number.

22120002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120002120 is an abundant number, since it is smaller than the sum of its proper divisors (44240004600).

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

22120002120 is a wasteful number, since it uses less digits than its factorization.

22120002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184333365 (or 184333361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22120002120 its reverse (2120002122), we get a palindrome (24240004242).

The spelling of 22120002120 in words is "twenty-two billion, one hundred twenty million, two thousand, one hundred twenty".