21442303202 has 16 divisors (see below), whose sum is σ = 33213396480. Its totient is φ = 10375746192.

The previous prime is 21442303189. The next prime is 21442303217. The reversal of 21442303202 is 20230324412.

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 7 ways as a sum of consecutive naturals, for example, 1134338 + ... + 1153085.

It is an arithmetic number, because the mean of its divisors is an integer number (2075837280).

Almost surely, 2^21442303202 is an apocalyptic number.

21442303202 is a deficient number, since it is larger than the sum of its proper divisors (11771093278).

21442303202 is a wasteful number, since it uses less digits than its factorization.

21442303202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287577.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21442303202 its reverse (20230324412), we get a palindrome (41672627614).

The spelling of 21442303202 in words is "twenty-one billion, four hundred forty-two million, three hundred three thousand, two hundred two".