12020022120 has 64 divisors (see below), whose sum is σ = 36417133440. Its totient is φ = 3173600000.

The previous prime is 12020022107. The next prime is 12020022137. The reversal of 12020022120 is 2122002021.

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 = 12020022096 and 12020022105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483756 + ... + 507995.

It is an arithmetic number, because the mean of its divisors is an integer number (569017710).

Almost surely, 2^12020022120 is an apocalyptic number.

12020022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020022120 is an abundant number, since it is smaller than the sum of its proper divisors (24397111320).

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

12020022120 is a wasteful number, since it uses less digits than its factorization.

12020022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991866 (or 991862 counting only the distinct ones).

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

Adding to 12020022120 its reverse (2122002021), we get a palindrome (14142024141).

The spelling of 12020022120 in words is "twelve billion, twenty million, twenty-two thousand, one hundred twenty".