1002110221021 has 8 divisors (see below), whose sum is σ = 1233366425984. Its totient is φ = 792878416560.

The previous prime is 1002110220959. The next prime is 1002110221061. The reversal of 1002110221021 is 1201220112001.

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 1002110221021 - 2²⁷ = 1001976003293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1002110220992 and 1002110221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002110221061) 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 7 ways as a sum of consecutive naturals, for example, 5506100025 + ... + 5506100206.

It is an arithmetic number, because the mean of its divisors is an integer number (154170803248).

Almost surely, 2^{1002110221021} is an apocalyptic number.

It is an amenable number.

1002110221021 is a deficient number, since it is larger than the sum of its proper divisors (231256204963).

1002110221021 is a wasteful number, since it uses less digits than its factorization.

1002110221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012200251.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002110221021 its reverse (1201220112001), we get a palindrome (2203330333022).

The spelling of 1002110221021 in words is "one trillion, two billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".