20112102002 has 8 divisors (see below), whose sum is σ = 30169920000. Its totient is φ = 10055462004.

The previous prime is 20112101987. The next prime is 20112102007. The reversal of 20112102002 is 20020121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20112102007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 250502 + ... + 320897.

It is an arithmetic number, because the mean of its divisors is an integer number (3771240000).

Almost surely, 2^20112102002 is an apocalyptic number.

20112102002 is a deficient number, since it is larger than the sum of its proper divisors (10057817998).

20112102002 is a wasteful number, since it uses less digits than its factorization.

20112102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589000.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20112102002 its reverse (20020121102), we get a palindrome (40132223104).

The spelling of 20112102002 in words is "twenty billion, one hundred twelve million, one hundred two thousand, two".