12020002021218 has 16 divisors (see below), whose sum is σ = 24599073904416. Its totient is φ = 3913489030080.

The previous prime is 12020002021211. The next prime is 12020002021249. The reversal of 12020002021218 is 81212020002021.

It is a junction number, because it is equal to n+sod(n) for n = 12020002021194 and 12020002021203.

It is not an unprimeable number, because it can be changed into a prime (12020002021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23294577303 + ... + 23294577818.

It is an arithmetic number, because the mean of its divisors is an integer number (1537442119026).

Almost surely, 2^{12020002021218} is an apocalyptic number.

12020002021218 is an abundant number, since it is smaller than the sum of its proper divisors (12579071883198).

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

12020002021218 is a wasteful number, since it uses less digits than its factorization.

12020002021218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46589155169.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12020002021218 its reverse (81212020002021), we get a palindrome (93232022023239).

The spelling of 12020002021218 in words is "twelve trillion, twenty billion, two million, twenty-one thousand, two hundred eighteen".