1002110011021 has 64 divisors (see below), whose sum is σ = 1237055846400. Its totient is φ = 792715113216.

The previous prime is 1002110010991. The next prime is 1002110011031. The reversal of 1002110011021 is 1201100112001.

It is not a de Polignac number, because 1002110011021 - 2²¹ = 1002107913869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002110010989 and 1002110011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002110011031) 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 63 ways as a sum of consecutive naturals, for example, 844236990 + ... + 844238176.

It is an arithmetic number, because the mean of its divisors is an integer number (19328997600).

Almost surely, 2^{1002110011021} is an apocalyptic number.

It is an amenable number.

1002110011021 is a deficient number, since it is larger than the sum of its proper divisors (234945835379).

1002110011021 is a wasteful number, since it uses less digits than its factorization.

1002110011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1002110011021 its reverse (1201100112001), we get a palindrome (2203210123022).

The spelling of 1002110011021 in words is "one trillion, two billion, one hundred ten million, eleven thousand, twenty-one".