211210221111001 has 8 divisors (see below), whose sum is σ = 244095279615360. Its totient is φ = 179003205050208.

The previous prime is 211210221110923. The next prime is 211210221111007. The reversal of 211210221111001 is 100111122012112.

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

It is not a de Polignac number, because 211210221111001 - 2¹³ = 211210221102809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211210221111007) 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, 169510610221 + ... + 169510611466.

It is an arithmetic number, because the mean of its divisors is an integer number (30511909951920).

Almost surely, 2^{211210221111001} is an apocalyptic number.

It is an amenable number.

211210221111001 is a deficient number, since it is larger than the sum of its proper divisors (32885058504359).

211210221111001 is an equidigital number, since it uses as much as digits as its factorization.

211210221111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339021221783.

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

Adding to 211210221111001 its reverse (100111122012112), we get a palindrome (311321343123113).

The spelling of 211210221111001 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-one million, one hundred eleven thousand, one".