21303202221112 has 32 divisors (see below), whose sum is σ = 45649989601920. Its totient is φ = 9129889697760.

The previous prime is 21303202221097. The next prime is 21303202221113. The reversal of 21303202221112 is 21112220230312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303202221113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9251223 + ... + 11322169.

It is an arithmetic number, because the mean of its divisors is an integer number (1426562175060).

Almost surely, 2^{21303202221112} is an apocalyptic number.

It is an amenable number.

21303202221112 is an abundant number, since it is smaller than the sum of its proper divisors (24346787380808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303202221112 is a wasteful number, since it uses less digits than its factorization.

21303202221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254651 (or 2254647 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21303202221112 its reverse (21112220230312), we get a palindrome (42415422451424).

The spelling of 21303202221112 in words is "twenty-one trillion, three hundred three billion, two hundred two million, two hundred twenty-one thousand, one hundred twelve".