1002020033221 has 8 divisors (see below), whose sum is σ = 1011451378784. Its totient is φ = 992628736560.

The previous prime is 1002020033191. The next prime is 1002020033263. The reversal of 1002020033221 is 1223300202001.

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 1002020033221 - 2⁷ = 1002020033093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002020033195 and 1002020033204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020033281) 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, 9961950 + ... + 10062031.

It is an arithmetic number, because the mean of its divisors is an integer number (126431422348).

Almost surely, 2^{1002020033221} is an apocalyptic number.

It is an amenable number.

1002020033221 is a deficient number, since it is larger than the sum of its proper divisors (9431345563).

1002020033221 is a wasteful number, since it uses less digits than its factorization.

1002020033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20024451.

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

Adding to 1002020033221 its reverse (1223300202001), we get a palindrome (2225320235222).

The spelling of 1002020033221 in words is "one trillion, two billion, twenty million, thirty-three thousand, two hundred twenty-one".