21300221030 has 32 divisors (see below), whose sum is σ = 41843335968. Its totient is φ = 7742304000.

The previous prime is 21300220987. The next prime is 21300221081. The reversal of 21300221030 is 3012200312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21300220996 and 21300221014.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 232880 + ... + 311180.

It is an arithmetic number, because the mean of its divisors is an integer number (1307604249).

Almost surely, 2^21300221030 is an apocalyptic number.

21300221030 is a deficient number, since it is larger than the sum of its proper divisors (20543114938).

21300221030 is a wasteful number, since it uses less digits than its factorization.

21300221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80792.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21300221030 its reverse (3012200312), we get a palindrome (24312421342).

The spelling of 21300221030 in words is "twenty-one billion, three hundred million, two hundred twenty-one thousand, thirty".