20032030221 has 16 divisors (see below), whose sum is σ = 30599644800. Its totient is φ = 11418882048.

The previous prime is 20032030217. The next prime is 20032030243. The reversal of 20032030221 is 12203023002.

It is not a de Polignac number, because 20032030221 - 2² = 20032030217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20032030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032030211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157556 + ... + 1174733.

It is an arithmetic number, because the mean of its divisors is an integer number (1912477800).

Almost surely, 2^20032030221 is an apocalyptic number.

20032030221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20032030221 is a deficient number, since it is larger than the sum of its proper divisors (10567614579).

20032030221 is a wasteful number, since it uses less digits than its factorization.

20032030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332708.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20032030221 its reverse (12203023002), we get a palindrome (32235053223).

The spelling of 20032030221 in words is "twenty billion, thirty-two million, thirty thousand, two hundred twenty-one".