10222021021 has 4 divisors (see below), whose sum is σ = 10248299100. Its totient is φ = 10195742944.

The previous prime is 10222020983. The next prime is 10222021027. The reversal of 10222021021 is 12012022201.

It is a happy number.

10222021021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5476740025 + 4745280996 = 74005^2 + 68886^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222021021 - 2¹¹ = 10222018973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10222020992 and 10222021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222021027) 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 3 ways as a sum of consecutive naturals, for example, 13138456 + ... + 13139233.

It is an arithmetic number, because the mean of its divisors is an integer number (2562074775).

Almost surely, 2^10222021021 is an apocalyptic number.

It is an amenable number.

10222021021 is a deficient number, since it is larger than the sum of its proper divisors (26278079).

10222021021 is an equidigital number, since it uses as much as digits as its factorization.

10222021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26278078.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10222021021 its reverse (12012022201), we get a palindrome (22234043222).

The spelling of 10222021021 in words is "ten billion, two hundred twenty-two million, twenty-one thousand, twenty-one".