10021210221 has 8 divisors (see below), whose sum is σ = 14576305824. Its totient is φ = 6073460720.

The previous prime is 10021210219. The next prime is 10021210229. The reversal of 10021210221 is 12201212001.

10021210221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10021210221 - 2¹ = 10021210219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021210197 and 10021210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021210229) 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 7 ways as a sum of consecutive naturals, for example, 151836486 + ... + 151836551.

It is an arithmetic number, because the mean of its divisors is an integer number (1822038228).

Almost surely, 2^10021210221 is an apocalyptic number.

10021210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021210221 is a deficient number, since it is larger than the sum of its proper divisors (4555095603).

10021210221 is a wasteful number, since it uses less digits than its factorization.

10021210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303673051.

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

Adding to 10021210221 its reverse (12201212001), we get a palindrome (22222422222).

The spelling of 10021210221 in words is "ten billion, twenty-one million, two hundred ten thousand, two hundred twenty-one".