22135532 has 12 divisors (see below), whose sum is σ = 40776120. Its totient is φ = 10485216.

The previous prime is 22135517. The next prime is 22135537. The reversal of 22135532 is 23553122.

It is a junction number, because it is equal to n+sod(n) for n = 22135498 and 22135507.

It is not an unprimeable number, because it can be changed into a prime (22135537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145553 + ... + 145704.

It is an arithmetic number, because the mean of its divisors is an integer number (3398010).

Almost surely, 2^22135532 is an apocalyptic number.

It is an amenable number.

22135532 is a deficient number, since it is larger than the sum of its proper divisors (18640588).

22135532 is a wasteful number, since it uses less digits than its factorization.

22135532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291280 (or 291278 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 22135532 is about 4704.8413363258. The cubic root of 22135532 is about 280.7781585163.

Adding to 22135532 its reverse (23553122), we get a palindrome (45688654).

It can be divided in two parts, 221 and 35532, that added together give a palindrome (35753).

The spelling of 22135532 in words is "twenty-two million, one hundred thirty-five thousand, five hundred thirty-two".