10030221221 has 16 divisors (see below), whose sum is σ = 10927849968. Its totient is φ = 9170304000.

The previous prime is 10030221203. The next prime is 10030221251. The reversal of 10030221221 is 12212203001.

It is a happy number.

10030221221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1199860321 + 8830360900 = 34639^2 + 93970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10030221221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10030221196 and 10030221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030221251) 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 15 ways as a sum of consecutive naturals, for example, 35891 + ... + 146111.

It is an arithmetic number, because the mean of its divisors is an integer number (682990623).

Almost surely, 2^10030221221 is an apocalyptic number.

It is an amenable number.

10030221221 is a deficient number, since it is larger than the sum of its proper divisors (897628747).

10030221221 is a wasteful number, since it uses less digits than its factorization.

10030221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110392.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10030221221 its reverse (12212203001), we get a palindrome (22242424222).

The spelling of 10030221221 in words is "ten billion, thirty million, two hundred twenty-one thousand, two hundred twenty-one".