22004322340021 has 32 divisors (see below), whose sum is σ = 26047873893888. Its totient is φ = 18197051458560.

The previous prime is 22004322339931. The next prime is 22004322340067. The reversal of 22004322340021 is 12004322340022.

It is a cyclic number.

It is not a de Polignac number, because 22004322340021 - 2⁷ = 22004322339893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004322340081) 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 31 ways as a sum of consecutive naturals, for example, 9276951 + ... + 11404843.

It is an arithmetic number, because the mean of its divisors is an integer number (813996059184).

Almost surely, 2^{22004322340021} is an apocalyptic number.

It is an amenable number.

22004322340021 is a deficient number, since it is larger than the sum of its proper divisors (4043551553867).

22004322340021 is a wasteful number, since it uses less digits than its factorization.

22004322340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128341.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22004322340021 its reverse (12004322340022), we get a palindrome (34008644680043).

Subtracting from 22004322340021 its reverse (12004322340022), we obtain a palindrome (9999999999999).

The spelling of 22004322340021 in words is "twenty-two trillion, four billion, three hundred twenty-two million, three hundred forty thousand, twenty-one".