10222220021 has 36 divisors (see below), whose sum is σ = 11634689088. Its totient is φ = 8968220352.

The previous prime is 10222220017. The next prime is 10222220033. The reversal of 10222220021 is 12002222201.

10222220021 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 10222220021 - 2² = 10222220017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10222219978 and 10222220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222220011) 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 35 ways as a sum of consecutive naturals, for example, 59087891 + ... + 59088063.

It is an arithmetic number, because the mean of its divisors is an integer number (323185808).

Almost surely, 2^10222220021 is an apocalyptic number.

It is an amenable number.

10222220021 is a deficient number, since it is larger than the sum of its proper divisors (1412469067).

10222220021 is an equidigital number, since it uses as much as digits as its factorization.

10222220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10222220021 its reverse (12002222201), we get a palindrome (22224442222).

The spelling of 10222220021 in words is "ten billion, two hundred twenty-two million, two hundred twenty thousand, twenty-one".