23211201211 has 16 divisors (see below), whose sum is σ = 27273882240. Its totient is φ = 19525605120.

The previous prime is 23211201193. The next prime is 23211201227. The reversal of 23211201211 is 11210211232.

It is not a de Polignac number, because 23211201211 - 2⁵ = 23211201179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23211201271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1282390 + ... + 1300363.

It is an arithmetic number, because the mean of its divisors is an integer number (1704617640).

Almost surely, 2^23211201211 is an apocalyptic number.

23211201211 is a deficient number, since it is larger than the sum of its proper divisors (4062681029).

23211201211 is a wasteful number, since it uses less digits than its factorization.

23211201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582826.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23211201211 its reverse (11210211232), we get a palindrome (34421412443).

It can be divided in two parts, 23211 and 201211, that added together give a palindrome (224422).

The spelling of 23211201211 in words is "twenty-three billion, two hundred eleven million, two hundred one thousand, two hundred eleven".