22051331424 has 72 divisors (see below), whose sum is σ = 62743694832. Its totient is φ = 7346315520.

The previous prime is 22051331413. The next prime is 22051331461. The reversal of 22051331424 is 42413315022.

22051331424 is a `hidden beast` number, since 2 + 2 + 0 + 513 + 3 + 142 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×22051331424² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515397 + ... + 556539.

It is an arithmetic number, because the mean of its divisors is an integer number (871440206).

Almost surely, 2^22051331424 is an apocalyptic number.

22051331424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22051331424 is an abundant number, since it is smaller than the sum of its proper divisors (40692363408).

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

22051331424 is a wasteful number, since it uses less digits than its factorization.

22051331424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43020 (or 43009 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 22051331424 its reverse (42413315022), we get a palindrome (64464646446).

The spelling of 22051331424 in words is "twenty-two billion, fifty-one million, three hundred thirty-one thousand, four hundred twenty-four".