2110001021001 has 20 divisors (see below), whose sum is σ = 3160206584832. Its totient is φ = 1402994566008.

The previous prime is 2110001020949. The next prime is 2110001021003. The reversal of 2110001021001 is 1001201000112.

It is a happy number.

It is not a de Polignac number, because 2110001021001 - 2¹³ = 2110001012809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2110001021003) 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 19 ways as a sum of consecutive naturals, for example, 33976021 + ... + 34038066.

Almost surely, 2^{2110001021001} is an apocalyptic number.

It is an amenable number.

2110001021001 is a deficient number, since it is larger than the sum of its proper divisors (1050205563831).

2110001021001 is an equidigital number, since it uses as much as digits as its factorization.

2110001021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68014482 (or 68014473 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2110001021001 its reverse (1001201000112), we get a palindrome (3111202021113).

The spelling of 2110001021001 in words is "two trillion, one hundred ten billion, one million, twenty-one thousand, one".