2002012110021 has 32 divisors (see below), whose sum is σ = 3353424915456. Its totient is φ = 1032067296000.

The previous prime is 2002012109983. The next prime is 2002012110023. The reversal of 2002012110021 is 1200112102002.

It is not a de Polignac number, because 2002012110021 - 2²⁹ = 2001475239109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002012109979 and 2002012110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002012110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33048820 + ... + 33109341.

It is an arithmetic number, because the mean of its divisors is an integer number (104794528608).

Almost surely, 2^{2002012110021} is an apocalyptic number.

2002012110021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2002012110021 is a deficient number, since it is larger than the sum of its proper divisors (1351412805435).

2002012110021 is a wasteful number, since it uses less digits than its factorization.

2002012110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66158313.

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

Adding to 2002012110021 its reverse (1200112102002), we get a palindrome (3202124212023).

The spelling of 2002012110021 in words is "two trillion, two billion, twelve million, one hundred ten thousand, twenty-one".