20002112202121 has 8 divisors (see below), whose sum is σ = 22991692970304. Its totient is φ = 17045565475920.

The previous prime is 20002112202119. The next prime is 20002112202131. The reversal of 20002112202121 is 12120221120002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20002112202121 - 2¹ = 20002112202119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002112202095 and 20002112202104.

It is not an unprimeable number, because it can be changed into a prime (20002112202131) 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, 8258509195 + ... + 8258511616.

It is an arithmetic number, because the mean of its divisors is an integer number (2873961621288).

Almost surely, 2^{20002112202121} is an apocalyptic number.

It is an amenable number.

20002112202121 is a deficient number, since it is larger than the sum of its proper divisors (2989580768183).

20002112202121 is a wasteful number, since it uses less digits than its factorization.

20002112202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16517020991.

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

Adding to 20002112202121 its reverse (12120221120002), we get a palindrome (32122333322123).

The spelling of 20002112202121 in words is "twenty trillion, two billion, one hundred twelve million, two hundred two thousand, one hundred twenty-one".