12020010208 has 48 divisors (see below), whose sum is σ = 25290712944. Its totient is φ = 5603584000.

The previous prime is 12020010187. The next prime is 12020010209. The reversal of 12020010208 is 80201002021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12020010191 and 12020010200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020010209) 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, 45043 + ... + 161458.

It is an arithmetic number, because the mean of its divisors is an integer number (526889853).

Almost surely, 2^12020010208 is an apocalyptic number.

It is an amenable number.

12020010208 is an abundant number, since it is smaller than the sum of its proper divisors (13270702736).

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

12020010208 is a wasteful number, since it uses less digits than its factorization.

12020010208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206635 (or 206627 counting only the distinct ones).

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

Adding to 12020010208 its reverse (80201002021), we get a palindrome (92221012229).

The spelling of 12020010208 in words is "twelve billion, twenty million, ten thousand, two hundred eight".