21240022130022 has 8 divisors (see below), whose sum is σ = 42480044260056. Its totient is φ = 7080007376672.

The previous prime is 21240022130011. The next prime is 21240022130051. The reversal of 21240022130022 is 22003122004212.

It is a sphenic number, since it is the product of 3 distinct primes.

21240022130022 is an admirable number.

It is a super-2 number, since 2×21240022130022² (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 1770001844163 + ... + 1770001844174.

It is an arithmetic number, because the mean of its divisors is an integer number (5310005532507).

Almost surely, 2^{21240022130022} is an apocalyptic number.

21240022130022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21240022130022 is a wasteful number, since it uses less digits than its factorization.

21240022130022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540003688342.

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

Adding to 21240022130022 its reverse (22003122004212), we get a palindrome (43243144134234).

The spelling of 21240022130022 in words is "twenty-one trillion, two hundred forty billion, twenty-two million, one hundred thirty thousand, twenty-two".