1002001112021 has 8 divisors (see below), whose sum is σ = 1233232137984. Its totient is φ = 792792088560.

The previous prime is 1002001112003. The next prime is 1002001112023. The reversal of 1002001112021 is 1202111002001.

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 1002001112021 - 2¹⁴ = 1002001095637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002001111993 and 1002001112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002001112023) 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, 5505500525 + ... + 5505500706.

It is an arithmetic number, because the mean of its divisors is an integer number (154154017248).

Almost surely, 2^{1002001112021} is an apocalyptic number.

It is an amenable number.

1002001112021 is a deficient number, since it is larger than the sum of its proper divisors (231231025963).

1002001112021 is a wasteful number, since it uses less digits than its factorization.

1002001112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011001251.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002001112021 its reverse (1202111002001), we get a palindrome (2204112114022).

The spelling of 1002001112021 in words is "one trillion, two billion, one million, one hundred twelve thousand, twenty-one".