22103221001 has 2 divisors, whose sum is σ = 22103221002. Its totient is φ = 22103221000.

The previous prime is 22103220989. The next prime is 22103221031. The reversal of 22103221001 is 10012230122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17540353600 + 4562867401 = 132440^2 + 67549^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103221001 - 2¹⁰ = 22103219977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22103221031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051610500 + 11051610501.

It is an arithmetic number, because the mean of its divisors is an integer number (11051610501).

Almost surely, 2^22103221001 is an apocalyptic number.

It is an amenable number.

22103221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103221001 is an equidigital number, since it uses as much as digits as its factorization.

22103221001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22103221001 its reverse (10012230122), we get a palindrome (32115451123).

The spelling of 22103221001 in words is "twenty-two billion, one hundred three million, two hundred twenty-one thousand, one".