21443453201022 has 8 divisors (see below), whose sum is σ = 42886906402056. Its totient is φ = 7147817733672.

The previous prime is 21443453200999. The next prime is 21443453201033. The reversal of 21443453201022 is 22010235434412.

It is a happy number.

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

21443453201022 is an admirable number.

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, 1786954433413 + ... + 1786954433424.

It is an arithmetic number, because the mean of its divisors is an integer number (5360863300257).

Almost surely, 2^{21443453201022} is an apocalyptic number.

21443453201022 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.

21443453201022 is a wasteful number, since it uses less digits than its factorization.

21443453201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573908866842.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 21443453201022 its reverse (22010235434412), we get a palindrome (43453688635434).

The spelling of 21443453201022 in words is "twenty-one trillion, four hundred forty-three billion, four hundred fifty-three million, two hundred one thousand, twenty-two".