2211211211001 has 16 divisors (see below), whose sum is σ = 3222461653824. Its totient is φ = 1340435726784.

The previous prime is 2211211210939. The next prime is 2211211211009. The reversal of 2211211211001 is 1001121121122.

It is a happy number.

2211211211001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211211211001 - 2⁶ = 2211211210937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2211211211009) 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, 423114726 + ... + 423119951.

It is an arithmetic number, because the mean of its divisors is an integer number (201403853364).

Almost surely, 2^{2211211211001} is an apocalyptic number.

It is an amenable number.

2211211211001 is a deficient number, since it is larger than the sum of its proper divisors (1011250442823).

2211211211001 is a wasteful number, since it uses less digits than its factorization.

2211211211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846234760.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2211211211001 its reverse (1001121121122), we get a palindrome (3212332332123).

The spelling of 2211211211001 in words is "two trillion, two hundred eleven billion, two hundred eleven million, two hundred eleven thousand, one".