22421131432 has 32 divisors (see below), whose sum is σ = 48156292800. Its totient is φ = 9586854144.

The previous prime is 22421131429. The next prime is 22421131433. The reversal of 22421131432 is 23413112422.

It is a junction number, because it is equal to n+sod(n) for n = 22421131397 and 22421131406.

It is not an unprimeable number, because it can be changed into a prime (22421131433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438082 + ... + 486577.

It is an arithmetic number, because the mean of its divisors is an integer number (1504884150).

Almost surely, 2^22421131432 is an apocalyptic number.

It is an amenable number.

22421131432 is an abundant number, since it is smaller than the sum of its proper divisors (25735161368).

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

22421131432 is a wasteful number, since it uses less digits than its factorization.

22421131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925105 (or 925101 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 22421131432 its reverse (23413112422), we get a palindrome (45834243854).

The spelling of 22421131432 in words is "twenty-two billion, four hundred twenty-one million, one hundred thirty-one thousand, four hundred thirty-two".