21443101353222 has 8 divisors (see below), whose sum is σ = 42886202706456. Its totient is φ = 7147700451072.

The previous prime is 21443101353199. The next prime is 21443101353239. The reversal of 21443101353222 is 22235310134412.

It is a happy number.

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

21443101353222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786925112763 + ... + 1786925112774.

It is an arithmetic number, because the mean of its divisors is an integer number (5360775338307).

Almost surely, 2^{21443101353222} is an apocalyptic number.

21443101353222 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.

21443101353222 is a wasteful number, since it uses less digits than its factorization.

21443101353222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573850225542.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 21443101353222 its reverse (22235310134412), we get a palindrome (43678411487634).

The spelling of 21443101353222 in words is "twenty-one trillion, four hundred forty-three billion, one hundred one million, three hundred fifty-three thousand, two hundred twenty-two".