20002112122 has 8 divisors (see below), whose sum is σ = 30003798816. Its totient is φ = 10000845852.

The previous prime is 20002112111. The next prime is 20002112153. The reversal of 20002112122 is 22121120002.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76803 + ... + 214249.

It is an arithmetic number, because the mean of its divisors is an integer number (3750474852).

Almost surely, 2^20002112122 is an apocalyptic number.

20002112122 is a deficient number, since it is larger than the sum of its proper divisors (10001686694).

20002112122 is a wasteful number, since it uses less digits than its factorization.

20002112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210212.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002112122 its reverse (22121120002), we get a palindrome (42123232124).

The spelling of 20002112122 in words is "twenty billion, two million, one hundred twelve thousand, one hundred twenty-two".