10221222005 has 4 divisors (see below), whose sum is σ = 12265466412. Its totient is φ = 8176977600.

The previous prime is 10221221993. The next prime is 10221222013. The reversal of 10221222005 is 50022212201.

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 1449401041 + 8771820964 = 38071^2 + 93658^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10221222005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022122196 + ... + 1022122205.

It is an arithmetic number, because the mean of its divisors is an integer number (3066366603).

Almost surely, 2^10221222005 is an apocalyptic number.

It is an amenable number.

10221222005 is a deficient number, since it is larger than the sum of its proper divisors (2044244407).

10221222005 is an equidigital number, since it uses as much as digits as its factorization.

10221222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044244406.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 10221222005 its reverse (50022212201), we get a palindrome (60243434206).

The spelling of 10221222005 in words is "ten billion, two hundred twenty-one million, two hundred twenty-two thousand, five".