21222130000242 has 8 divisors (see below), whose sum is σ = 42444260000496. Its totient is φ = 7074043333412.

The previous prime is 21222130000229. The next prime is 21222130000271. The reversal of 21222130000242 is 24200003122212.

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

21222130000242 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1768510833348 + ... + 1768510833359.

It is an arithmetic number, because the mean of its divisors is an integer number (5305532500062).

Almost surely, 2^{21222130000242} is an apocalyptic number.

21222130000242 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.

21222130000242 is a wasteful number, since it uses less digits than its factorization.

21222130000242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537021666712.

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

Adding to 21222130000242 its reverse (24200003122212), we get a palindrome (45422133122454).

The spelling of 21222130000242 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred thirty million, two hundred forty-two", and thus it is an aban number.