1002020022021 has 8 divisors (see below), whose sum is σ = 1348512927264. Its totient is φ = 661770232400.

The previous prime is 1002020022011. The next prime is 1002020022061. The reversal of 1002020022021 is 1202200202001.

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 1002020022021 - 2³⁰ = 1000946280197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002020021988 and 1002020022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020022011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560778530 + ... + 1560779171.

It is an arithmetic number, because the mean of its divisors is an integer number (168564115908).

Almost surely, 2^{1002020022021} is an apocalyptic number.

It is an amenable number.

1002020022021 is a deficient number, since it is larger than the sum of its proper divisors (346492905243).

1002020022021 is a wasteful number, since it uses less digits than its factorization.

1002020022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121557811.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1002020022021 its reverse (1202200202001), we get a palindrome (2204220224022).

The spelling of 1002020022021 in words is "one trillion, two billion, twenty million, twenty-two thousand, twenty-one".