21422324332 has 6 divisors (see below), whose sum is σ = 37489067588. Its totient is φ = 10711162164.

The previous prime is 21422324317. The next prime is 21422324333. The reversal of 21422324332 is 23342322412.

It is a self number, because there is not a number n which added to its sum of digits gives 21422324332.

It is not an unprimeable number, because it can be changed into a prime (21422324333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2677790538 + ... + 2677790545.

Almost surely, 2^21422324332 is an apocalyptic number.

It is an amenable number.

21422324332 is a deficient number, since it is larger than the sum of its proper divisors (16066743256).

21422324332 is a wasteful number, since it uses less digits than its factorization.

21422324332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355581087 (or 5355581085 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

Adding to 21422324332 its reverse (23342322412), we get a palindrome (44764646744).

The spelling of 21422324332 in words is "twenty-one billion, four hundred twenty-two million, three hundred twenty-four thousand, three hundred thirty-two".