22131113111211 has 24 divisors (see below), whose sum is σ = 32262832632576. Its totient is φ = 13486921774560.

The previous prime is 22131113111189. The next prime is 22131113111227. The reversal of 22131113111211 is 11211131113122.

It is not a de Polignac number, because 22131113111211 - 2⁹ = 22131113110699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22131113111251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211846375 + ... + 211950816.

It is an arithmetic number, because the mean of its divisors is an integer number (1344284693024).

Almost surely, 2^{22131113111211} is an apocalyptic number.

22131113111211 is a deficient number, since it is larger than the sum of its proper divisors (10131719521365).

22131113111211 is a wasteful number, since it uses less digits than its factorization.

22131113111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423797323 (or 423797310 counting only the distinct ones).

The product of its digits is 72, while the sum is 21.

Adding to 22131113111211 its reverse (11211131113122), we get a palindrome (33342244224333).

The spelling of 22131113111211 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred thirteen million, one hundred eleven thousand, two hundred eleven".