22145033232 has 120 divisors (see below), whose sum is σ = 73452340416. Its totient is φ = 6327144576.

The previous prime is 22145033231. The next prime is 22145033237. The reversal of 22145033232 is 23233054122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22145033196 and 22145033205.

It is not an unprimeable number, because it can be changed into a prime (22145033231) 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, 379623 + ... + 434054.

Almost surely, 2^22145033232 is an apocalyptic number.

It is an amenable number.

22145033232 is an abundant number, since it is smaller than the sum of its proper divisors (51307307184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22145033232 is an equidigital number, since it uses as much as digits as its factorization.

22145033232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813707 (or 813689 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 22145033232 its reverse (23233054122), we get a palindrome (45378087354).

The spelling of 22145033232 in words is "twenty-two billion, one hundred forty-five million, thirty-three thousand, two hundred thirty-two".