2011211223 has 12 divisors (see below), whose sum is σ = 3119429880. Its totient is φ = 1149263472.

The previous prime is 2011211221. The next prime is 2011211239. The reversal of 2011211223 is 3221121102.

It is not a de Polignac number, because 2011211223 - 2¹ = 2011211221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011211221) 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 11 ways as a sum of consecutive naturals, for example, 6840708 + ... + 6841001.

It is an arithmetic number, because the mean of its divisors is an integer number (259952490).

Almost surely, 2^2011211223 is an apocalyptic number.

2011211223 is a deficient number, since it is larger than the sum of its proper divisors (1108218657).

2011211223 is a wasteful number, since it uses less digits than its factorization.

2011211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13681726 (or 13681719 counting only the distinct ones).

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

The square root of 2011211223 is about 44846.5296650700. The cubic root of 2011211223 is about 1262.2708739244.

Adding to 2011211223 its reverse (3221121102), we get a palindrome (5232332325).

The spelling of 2011211223 in words is "two billion, eleven million, two hundred eleven thousand, two hundred twenty-three".