1001012021201 has 8 divisors (see below), whose sum is σ = 1002532389600. Its totient is φ = 999492359040.

The previous prime is 1001012021189. The next prime is 1001012021203. The reversal of 1001012021201 is 1021202101001.

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 1001012021201 - 2³⁸ = 726134114257 is a prime.

It is a super-2 number, since 2×1001012021201² (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 (1001012021203) 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, 2695745 + ... + 3044513.

It is an arithmetic number, because the mean of its divisors is an integer number (125316548700).

Almost surely, 2^{1001012021201} is an apocalyptic number.

It is an amenable number.

1001012021201 is a deficient number, since it is larger than the sum of its proper divisors (1520368399).

1001012021201 is an equidigital number, since it uses as much as digits as its factorization.

1001012021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353119.

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

Adding to 1001012021201 its reverse (1021202101001), we get a palindrome (2022214122202).

The spelling of 1001012021201 in words is "one trillion, one billion, twelve million, twenty-one thousand, two hundred one".