12120022220 has 24 divisors (see below), whose sum is σ = 25704051408. Its totient is φ = 4800008000.

The previous prime is 12120022181. The next prime is 12120022267. The reversal of 12120022220 is 2222002121.

12120022220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12120022220² (a number of 21 digits) contains 22 as substring.

12120022220 is a modest number, since divided by 22220 gives 12120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12120022195 and 12120022204.

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, 2997986 + ... + 3002025.

It is an arithmetic number, because the mean of its divisors is an integer number (1071002142).

Almost surely, 2^12120022220 is an apocalyptic number.

12120022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120022220 is an abundant number, since it is smaller than the sum of its proper divisors (13584029188).

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

12120022220 is a wasteful number, since it uses less digits than its factorization.

12120022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000121 (or 6000119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12120022220 its reverse (2222002121), we get a palindrome (14342024341).

The spelling of 12120022220 in words is "twelve billion, one hundred twenty million, twenty-two thousand, two hundred twenty".