2111021021001 has 8 divisors (see below), whose sum is σ = 2820474357184. Its totient is φ = 1404457516080.

The previous prime is 2111021020967. The next prime is 2111021021003. The reversal of 2111021021001 is 1001201201112.

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

It is not a de Polignac number, because 2111021021001 - 2⁷ = 2111021020873 is a prime.

It is a super-2 number, since 2×2111021021001² (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 (2111021021003) 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, 722456110 + ... + 722459031.

It is an arithmetic number, because the mean of its divisors is an integer number (352559294648).

Almost surely, 2^{2111021021001} is an apocalyptic number.

It is an amenable number.

2111021021001 is a deficient number, since it is larger than the sum of its proper divisors (709453336183).

2111021021001 is a wasteful number, since it uses less digits than its factorization.

2111021021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444915631.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2111021021001 its reverse (1001201201112), we get a palindrome (3112222222113).

The spelling of 2111021021001 in words is "two trillion, one hundred eleven billion, twenty-one million, twenty-one thousand, one".