21122043024 has 80 divisors (see below), whose sum is σ = 54810866880. Its totient is φ = 7009075200.

The previous prime is 21122043013. The next prime is 21122043049. The reversal of 21122043024 is 42034022112.

It is a super-2 number, since 2×21122043024² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14800999 + ... + 14802425.

It is an arithmetic number, because the mean of its divisors is an integer number (685135836).

Almost surely, 2^21122043024 is an apocalyptic number.

21122043024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21122043024 is an abundant number, since it is smaller than the sum of its proper divisors (33688823856).

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

21122043024 is a wasteful number, since it uses less digits than its factorization.

21122043024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21122043024 its reverse (42034022112), we get a palindrome (63156065136).

The spelling of 21122043024 in words is "twenty-one billion, one hundred twenty-two million, forty-three thousand, twenty-four".