2221010001211 has 4 divisors (see below), whose sum is σ = 2272661396632. Its totient is φ = 2169358605792.

The previous prime is 2221010001209. The next prime is 2221010001233. The reversal of 2221010001211 is 1121000101222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221010001211 - 2¹ = 2221010001209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221010001191 and 2221010001200.

It is not an unprimeable number, because it can be changed into a prime (2221010091211) 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 3 ways as a sum of consecutive naturals, for example, 25825697646 + ... + 25825697731.

It is an arithmetic number, because the mean of its divisors is an integer number (568165349158).

Almost surely, 2^{2221010001211} is an apocalyptic number.

2221010001211 is a deficient number, since it is larger than the sum of its proper divisors (51651395421).

2221010001211 is an equidigital number, since it uses as much as digits as its factorization.

2221010001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51651395420.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2221010001211 its reverse (1121000101222), we get a palindrome (3342010102433).

The spelling of 2221010001211 in words is "two trillion, two hundred twenty-one billion, ten million, one thousand, two hundred eleven".