2221011213 has 16 divisors (see below), whose sum is σ = 3217766400. Its totient is φ = 1357493040.

The previous prime is 2221011187. The next prime is 2221011227. The reversal of 2221011213 is 3121101222.

It is not a de Polignac number, because 2221011213 - 2¹⁰ = 2221010189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221011192 and 2221011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221011263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626703 + ... + 630236.

It is an arithmetic number, because the mean of its divisors is an integer number (201110400).

Almost surely, 2^2221011213 is an apocalyptic number.

It is an amenable number.

2221011213 is a deficient number, since it is larger than the sum of its proper divisors (996755187).

2221011213 is a wasteful number, since it uses less digits than its factorization.

2221011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256992.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2221011213 is about 47127.6056361874. The cubic root of 2221011213 is about 1304.7187902758.

Adding to 2221011213 its reverse (3121101222), we get a palindrome (5342112435).

Subtracting 2221011213 from its reverse (3121101222), we obtain a palindrome (900090009).

The spelling of 2221011213 in words is "two billion, two hundred twenty-one million, eleven thousand, two hundred thirteen".