22140021043 has 16 divisors (see below), whose sum is σ = 26828651520. Its totient is φ = 17835947136.

The previous prime is 22140021023. The next prime is 22140021067. The reversal of 22140021043 is 34012004122.

It is not a de Polignac number, because 22140021043 - 2²⁵ = 22106466611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22140021043.

It is not an unprimeable number, because it can be changed into a prime (22140021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43821 + ... + 214942.

It is an arithmetic number, because the mean of its divisors is an integer number (1676790720).

Almost surely, 2^22140021043 is an apocalyptic number.

22140021043 is a deficient number, since it is larger than the sum of its proper divisors (4688630477).

22140021043 is a wasteful number, since it uses less digits than its factorization.

22140021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259506.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22140021043 its reverse (34012004122), we get a palindrome (56152025165).

The spelling of 22140021043 in words is "twenty-two billion, one hundred forty million, twenty-one thousand, forty-three".