21122022005 has 8 divisors (see below), whose sum is σ = 28967344512. Its totient is φ = 14483672208.

The previous prime is 21122021971. The next prime is 21122022043. The reversal of 21122022005 is 50022022112.

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

It is a cyclic number.

It is not a de Polignac number, because 21122022005 - 2¹⁴ = 21122005621 is a prime.

It is a super-4 number, since 4×21122022005⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301743137 + ... + 301743206.

It is an arithmetic number, because the mean of its divisors is an integer number (3620918064).

Almost surely, 2^21122022005 is an apocalyptic number.

It is an amenable number.

21122022005 is a deficient number, since it is larger than the sum of its proper divisors (7845322507).

21122022005 is an equidigital number, since it uses as much as digits as its factorization.

21122022005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603486355.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 21122022005 its reverse (50022022112), we get a palindrome (71144044117).

The spelling of 21122022005 in words is "twenty-one billion, one hundred twenty-two million, twenty-two thousand, five".