22231031211 has 12 divisors (see below), whose sum is σ = 32115155800. Its totient is φ = 14818995360.

The previous prime is 22231031159. The next prime is 22231031227. The reversal of 22231031211 is 11213013222.

It is not a de Polignac number, because 22231031211 - 2⁹ = 22231030699 is a prime.

It is a super-2 number, since 2×22231031211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231031281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55045 + ... + 217926.

Almost surely, 2^22231031211 is an apocalyptic number.

22231031211 is a deficient number, since it is larger than the sum of its proper divisors (9884124589).

22231031211 is a wasteful number, since it uses less digits than its factorization.

22231031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282026 (or 282023 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22231031211 its reverse (11213013222), we get a palindrome (33444044433).

The spelling of 22231031211 in words is "twenty-two billion, two hundred thirty-one million, thirty-one thousand, two hundred eleven".