2102101201001 has 8 divisors (see below), whose sum is σ = 2159259364680. Its totient is φ = 2044961175168.

The previous prime is 2102101200989. The next prime is 2102101201003. The reversal of 2102101201001 is 1001021012012.

It can be written as a sum of positive squares in 4 ways, for example, as 387182617600 + 1714918583401 = 622240^2 + 1309549^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102101201001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102101201003) 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, 4299356 + ... + 4763261.

It is an arithmetic number, because the mean of its divisors is an integer number (269907420585).

Almost surely, 2^{2102101201001} is an apocalyptic number.

It is an amenable number.

2102101201001 is a deficient number, since it is larger than the sum of its proper divisors (57158163679).

2102101201001 is an equidigital number, since it uses as much as digits as its factorization.

2102101201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9068923.

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

Adding to 2102101201001 its reverse (1001021012012), we get a palindrome (3103122213013).

The spelling of 2102101201001 in words is "two trillion, one hundred two billion, one hundred one million, two hundred one thousand, one".