20002122212122 has 8 divisors (see below), whose sum is σ = 30027715769376. Its totient is φ = 9992883622332.

The previous prime is 20002122212011. The next prime is 20002122212129. The reversal of 20002122212122 is 22121222120002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20002122212122.

It is not an unprimeable number, because it can be changed into a prime (20002122212129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4088738808 + ... + 4088743699.

It is an arithmetic number, because the mean of its divisors is an integer number (3753464471172).

Almost surely, 2^{20002122212122} is an apocalyptic number.

20002122212122 is a deficient number, since it is larger than the sum of its proper divisors (10025593557254).

20002122212122 is a wasteful number, since it uses less digits than its factorization.

20002122212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8177483732.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20002122212122 its reverse (22121222120002), we get a palindrome (42123344332124).

The spelling of 20002122212122 in words is "twenty trillion, two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".