10222220321 has 4 divisors (see below), whose sum is σ = 10223070612. Its totient is φ = 10221370032.

The previous prime is 10222220317. The next prime is 10222220341. The reversal of 10222220321 is 12302222201.

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 5570980321 + 4651240000 = 74639^2 + 68200^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222220321 - 2² = 10222220317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10222220321.

It is not an unprimeable number, because it can be changed into a prime (10222220341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406850 + ... + 431243.

It is an arithmetic number, because the mean of its divisors is an integer number (2555767653).

Almost surely, 2^10222220321 is an apocalyptic number.

It is an amenable number.

10222220321 is a deficient number, since it is larger than the sum of its proper divisors (850291).

10222220321 is an equidigital number, since it uses as much as digits as its factorization.

10222220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850290.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10222220321 its reverse (12302222201), we get a palindrome (22524442522).

The spelling of 10222220321 in words is "ten billion, two hundred twenty-two million, two hundred twenty thousand, three hundred twenty-one".