21422324330 has 32 divisors (see below), whose sum is σ = 42137444160. Its totient is φ = 7776641920.

The previous prime is 21422324317. The next prime is 21422324333. The reversal of 21422324330 is 3342322412.

It is a self number, because there is not a number n which added to its sum of digits gives 21422324330.

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 in 15 ways as a sum of consecutive naturals, for example, 101315 + ... + 230454.

It is an arithmetic number, because the mean of its divisors is an integer number (1316795130).

Almost surely, 2^21422324330 is an apocalyptic number.

21422324330 is a deficient number, since it is larger than the sum of its proper divisors (20715119830).

21422324330 is a wasteful number, since it uses less digits than its factorization.

21422324330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332374.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 21422324330 its reverse (3342322412), we get a palindrome (24764646742).

The spelling of 21422324330 in words is "twenty-one billion, four hundred twenty-two million, three hundred twenty-four thousand, three hundred thirty".