1002100121201 has 8 divisors (see below), whose sum is σ = 1107179673984. Its totient is φ = 902146400320.

The previous prime is 1002100121173. The next prime is 1002100121207. The reversal of 1002100121201 is 1021210012001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002100121201 is a prime.

It is a super-2 number, since 2×1002100121201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002100121207) 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, 1281457565 + ... + 1281458346.

It is an arithmetic number, because the mean of its divisors is an integer number (138397459248).

Almost surely, 2^{1002100121201} is an apocalyptic number.

It is an amenable number.

1002100121201 is a deficient number, since it is larger than the sum of its proper divisors (105079552783).

1002100121201 is a wasteful number, since it uses less digits than its factorization.

1002100121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562915951.

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

Adding to 1002100121201 its reverse (1021210012001), we get a palindrome (2023310133202).

The spelling of 1002100121201 in words is "one trillion, two billion, one hundred million, one hundred twenty-one thousand, two hundred one".