12021214120 has 32 divisors (see below), whose sum is σ = 28471298400. Its totient is φ = 4555407168.

The previous prime is 12021214103. The next prime is 12021214129. The reversal of 12021214120 is 2141212021.

It is a junction number, because it is equal to n+sod(n) for n = 12021214094 and 12021214103.

It is not an unprimeable number, because it can be changed into a prime (12021214129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7907934 + ... + 7909453.

It is an arithmetic number, because the mean of its divisors is an integer number (889728075).

Almost surely, 2^12021214120 is an apocalyptic number.

12021214120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021214120 is an abundant number, since it is smaller than the sum of its proper divisors (16450084280).

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

12021214120 is a wasteful number, since it uses less digits than its factorization.

12021214120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15817417 (or 15817413 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12021214120 its reverse (2141212021), we get a palindrome (14162426141).

The spelling of 12021214120 in words is "twelve billion, twenty-one million, two hundred fourteen thousand, one hundred twenty".