10021102221 has 32 divisors (see below), whose sum is σ = 14918117760. Its totient is φ = 5941119744.

The previous prime is 10021102219. The next prime is 10021102241. The reversal of 10021102221 is 12220112001.

10021102221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10021102221 - 2¹ = 10021102219 is a prime.

It is a super-2 number, since 2×10021102221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10021102197 and 10021102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021102241) 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 31 ways as a sum of consecutive naturals, for example, 518691 + ... + 537663.

It is an arithmetic number, because the mean of its divisors is an integer number (466191180).

Almost surely, 2^10021102221 is an apocalyptic number.

It is an amenable number.

10021102221 is a deficient number, since it is larger than the sum of its proper divisors (4897015539).

10021102221 is a wasteful number, since it uses less digits than its factorization.

10021102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19485.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10021102221 its reverse (12220112001), we get a palindrome (22241214222).

The spelling of 10021102221 in words is "ten billion, twenty-one million, one hundred two thousand, two hundred twenty-one".