10023222221 has 4 divisors (see below), whose sum is σ = 10025245152. Its totient is φ = 10021199292.

The previous prime is 10023222199. The next prime is 10023222227. The reversal of 10023222221 is 12222232001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10023222221 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 10023222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023222227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004015 + ... + 1013948.

It is an arithmetic number, because the mean of its divisors is an integer number (2506311288).

Almost surely, 2^10023222221 is an apocalyptic number.

It is an amenable number.

10023222221 is a deficient number, since it is larger than the sum of its proper divisors (2022931).

10023222221 is an equidigital number, since it uses as much as digits as its factorization.

10023222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022930.

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

Adding to 10023222221 its reverse (12222232001), we get a palindrome (22245454222).

It can be divided in two parts, 1002 and 3222221, that added together give a palindrome (3223223).

The spelling of 10023222221 in words is "ten billion, twenty-three million, two hundred twenty-two thousand, two hundred twenty-one".