2021101200001 has 8 divisors (see below), whose sum is σ = 2179122200360. Its totient is φ = 1863444724992.

The previous prime is 2021101199989. The next prime is 2021101200023. The reversal of 2021101200001 is 1000021011202.

It can be written as a sum of positive squares in 4 ways, for example, as 104814710001 + 1916286490000 = 323751^2 + 1384300^2 .

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 2021101200001 - 2⁵ = 2021101199969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021101200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91119816 + ... + 91141993.

It is an arithmetic number, because the mean of its divisors is an integer number (272390275045).

Almost surely, 2^{2021101200001} is an apocalyptic number.

It is an amenable number.

2021101200001 is a deficient number, since it is larger than the sum of its proper divisors (158021000359).

2021101200001 is a wasteful number, since it uses less digits than its factorization.

2021101200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182262675.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2021101200001 its reverse (1000021011202), we get a palindrome (3021122211203).

The spelling of 2021101200001 in words is "two trillion, twenty-one billion, one hundred one million, two hundred thousand, one".