20211001200001 has 8 divisors (see below), whose sum is σ = 20494802431880. Its totient is φ = 19927387487232.

The previous prime is 20211001199953. The next prime is 20211001200031. The reversal of 20211001200001 is 10000210011202.

It can be written as a sum of positive squares in 4 ways, for example, as 1910059438401 + 18300941761600 = 1382049^2 + 4277960^2 .

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

It is not a de Polignac number, because 20211001200001 - 2¹³ = 20211001191809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211001200031) 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 7 ways as a sum of consecutive naturals, for example, 46662696 + ... + 47093833.

It is an arithmetic number, because the mean of its divisors is an integer number (2561850303985).

Almost surely, 2^{20211001200001} is an apocalyptic number.

It is an amenable number.

20211001200001 is a deficient number, since it is larger than the sum of its proper divisors (283801231879).

20211001200001 is an equidigital number, since it uses as much as digits as its factorization.

20211001200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93759555.

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

Adding to 20211001200001 its reverse (10000210011202), we get a palindrome (30211211211203).

The spelling of 20211001200001 in words is "twenty trillion, two hundred eleven billion, one million, two hundred thousand, one".