22231231133 has 12 divisors (see below), whose sum is σ = 23116328340. Its totient is φ = 21354598272.

The previous prime is 22231231129. The next prime is 22231231147. The reversal of 22231231133 is 33113213222.

It can be written as a sum of positive squares in 6 ways, for example, as 5928538009 + 16302693124 = 76997^2 + 127682^2 .

It is not a de Polignac number, because 22231231133 - 2² = 22231231129 is a prime.

It is a super-3 number, since 3×22231231133³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22231231099 and 22231231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231231103) 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, 1115585 + ... + 1135337.

It is an arithmetic number, because the mean of its divisors is an integer number (1926360695).

Almost surely, 2^22231231133 is an apocalyptic number.

It is an amenable number.

22231231133 is a deficient number, since it is larger than the sum of its proper divisors (885097207).

22231231133 is an equidigital number, since it uses as much as digits as its factorization.

22231231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176 (or 19979 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 22231231133 its reverse (33113213222), we get a palindrome (55344444355).

The spelling of 22231231133 in words is "twenty-two billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty-three".