22233221231 has 16 divisors (see below), whose sum is σ = 25708995648. Its totient is φ = 19043673600.

The previous prime is 22233221221. The next prime is 22233221237. The reversal of 22233221231 is 13212233222.

It is a cyclic number.

It is not a de Polignac number, because 22233221231 - 2¹⁸ = 22232959087 is a prime.

It is a super-2 number, since 2×22233221231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22233221197 and 22233221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233221237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692780 + ... + 724161.

It is an arithmetic number, because the mean of its divisors is an integer number (1606812228).

Almost surely, 2^22233221231 is an apocalyptic number.

22233221231 is a deficient number, since it is larger than the sum of its proper divisors (3475774417).

22233221231 is a wasteful number, since it uses less digits than its factorization.

22233221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417042.

The product of its digits is 1728, while the sum is 23.

Adding to 22233221231 its reverse (13212233222), we get a palindrome (35445454453).

The spelling of 22233221231 in words is "twenty-two billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred thirty-one".