2002112020021 has 8 divisors (see below), whose sum is σ = 2012398417280. Its totient is φ = 1991839045392.

The previous prime is 2002112020019. The next prime is 2002112020063. The reversal of 2002112020021 is 1200202112002.

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 2002112020021 - 2¹ = 2002112020019 is a prime.

It is a super-3 number, since 3×2002112020021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002112019983 and 2002112020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002112020081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3056505 + ... + 3653278.

It is an arithmetic number, because the mean of its divisors is an integer number (251549802160).

Almost surely, 2^{2002112020021} is an apocalyptic number.

It is an amenable number.

2002112020021 is a deficient number, since it is larger than the sum of its proper divisors (10286397259).

2002112020021 is a wasteful number, since it uses less digits than its factorization.

2002112020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711315.

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

Adding to 2002112020021 its reverse (1200202112002), we get a palindrome (3202314132023).

The spelling of 2002112020021 in words is "two trillion, two billion, one hundred twelve million, twenty thousand, twenty-one".