21032221030 has 16 divisors (see below), whose sum is σ = 37932384240. Its totient is φ = 8396358112.

The previous prime is 21032221013. The next prime is 21032221051. The reversal of 21032221030 is 3012223012.

It is a junction number, because it is equal to n+sod(n) for n = 21032220995 and 21032221013.

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 7 ways as a sum of consecutive naturals, for example, 2060944 + ... + 2071123.

It is an arithmetic number, because the mean of its divisors is an integer number (2370774015).

Almost surely, 2^21032221030 is an apocalyptic number.

21032221030 is a deficient number, since it is larger than the sum of its proper divisors (16900163210).

21032221030 is a wasteful number, since it uses less digits than its factorization.

21032221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132583.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032221030 its reverse (3012223012), we get a palindrome (24044444042).

The spelling of 21032221030 in words is "twenty-one billion, thirty-two million, two hundred twenty-one thousand, thirty".