1002022033021 has 4 divisors (see below), whose sum is σ = 1026461594844. Its totient is φ = 977582471200.

The previous prime is 1002022033009. The next prime is 1002022033039. The reversal of 1002022033021 is 1203302202001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 514252488996 + 487769544025 = 717114^2 + 698405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002022033021 - 2²⁹ = 1001485162109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002022032986 and 1002022033004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002022033321) 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 3 ways as a sum of consecutive naturals, for example, 12219780850 + ... + 12219780931.

It is an arithmetic number, because the mean of its divisors is an integer number (256615398711).

Almost surely, 2^{1002022033021} is an apocalyptic number.

It is an amenable number.

1002022033021 is a deficient number, since it is larger than the sum of its proper divisors (24439561823).

1002022033021 is an equidigital number, since it uses as much as digits as its factorization.

1002022033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24439561822.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1002022033021 its reverse (1203302202001), we get a palindrome (2205324235022).

The spelling of 1002022033021 in words is "one trillion, two billion, twenty-two million, thirty-three thousand, twenty-one".