2101211001201 has 16 divisors (see below), whose sum is σ = 3017250045824. Its totient is φ = 1292998685184.

The previous prime is 2101211001199. The next prime is 2101211001229. The reversal of 2101211001201 is 1021001121012.

It is not a de Polignac number, because 2101211001201 - 2¹ = 2101211001199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101211006201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178141 + ... + 2057706.

It is an arithmetic number, because the mean of its divisors is an integer number (188578127864).

Almost surely, 2^{2101211001201} is an apocalyptic number.

It is an amenable number.

2101211001201 is a deficient number, since it is larger than the sum of its proper divisors (916039044623).

2101211001201 is a wasteful number, since it uses less digits than its factorization.

2101211001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259960.

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

Adding to 2101211001201 its reverse (1021001121012), we get a palindrome (3122212122213).

The spelling of 2101211001201 in words is "two trillion, one hundred one billion, two hundred eleven million, one thousand, two hundred one".