2002120011021 has 8 divisors (see below), whose sum is σ = 2874838990240. Its totient is φ = 1232073852912.

The previous prime is 2002120011019. The next prime is 2002120011077. The reversal of 2002120011021 is 1201100212002.

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

It is not a de Polignac number, because 2002120011021 - 2¹ = 2002120011019 is a prime.

It is a super-2 number, since 2×2002120011021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002120010988 and 2002120011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002120011011) 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, 25668205231 + ... + 25668205308.

It is an arithmetic number, because the mean of its divisors is an integer number (359354873780).

Almost surely, 2^{2002120011021} is an apocalyptic number.

It is an amenable number.

2002120011021 is a deficient number, since it is larger than the sum of its proper divisors (872718979219).

2002120011021 is a wasteful number, since it uses less digits than its factorization.

2002120011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51336410555.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2002120011021 its reverse (1201100212002), we get a palindrome (3203220223023).

The spelling of 2002120011021 in words is "two trillion, two billion, one hundred twenty million, eleven thousand, twenty-one".