21422324331 has 12 divisors (see below), whose sum is σ = 32010370080. Its totient is φ = 13789082160.

The previous prime is 21422324317. The next prime is 21422324333. The reversal of 21422324331 is 13342322412.

21422324331 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 2 + 324 + 331 = 666.

It is not a de Polignac number, because 21422324331 - 2¹⁸ = 21422062187 is a prime.

It is a super-2 number, since 2×21422324331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21422324295 and 21422324304.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41038675 + ... + 41039196.

It is an arithmetic number, because the mean of its divisors is an integer number (2667530840).

Almost surely, 2^21422324331 is an apocalyptic number.

21422324331 is a deficient number, since it is larger than the sum of its proper divisors (10588045749).

21422324331 is a wasteful number, since it uses less digits than its factorization.

21422324331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82077906 (or 82077903 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 21422324331 its reverse (13342322412), we get a palindrome (34764646743).

The spelling of 21422324331 in words is "twenty-one billion, four hundred twenty-two million, three hundred twenty-four thousand, three hundred thirty-one".