21112003222311 has 32 divisors (see below), whose sum is σ = 28400306837760. Its totient is φ = 13949758656000.

The previous prime is 21112003222309. The next prime is 21112003222337. The reversal of 21112003222311 is 11322230021112.

It is not a de Polignac number, because 21112003222311 - 2¹ = 21112003222309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112003224311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218953711 + ... + 219050111.

It is an arithmetic number, because the mean of its divisors is an integer number (887509588680).

Almost surely, 2^{21112003222311} is an apocalyptic number.

21112003222311 is a deficient number, since it is larger than the sum of its proper divisors (7288303615449).

21112003222311 is a wasteful number, since it uses less digits than its factorization.

21112003222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97887.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21112003222311 its reverse (11322230021112), we get a palindrome (32434233243423).

The spelling of 21112003222311 in words is "twenty-one trillion, one hundred twelve billion, three million, two hundred twenty-two thousand, three hundred eleven".