23222220001 has 12 divisors (see below), whose sum is σ = 24005389716. Its totient is φ = 22463844960.

The previous prime is 23222219983. The next prime is 23222220011. The reversal of 23222220001 is 10002222232.

It can be written as a sum of positive squares in 2 ways, for example, as 13406166225 + 9816053776 = 115785^2 + 99076^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23222220001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23222220011) 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 11 ways as a sum of consecutive naturals, for example, 3991971 + ... + 3997783.

It is an arithmetic number, because the mean of its divisors is an integer number (2000449143).

Almost surely, 2^23222220001 is an apocalyptic number.

It is an amenable number.

23222220001 is a deficient number, since it is larger than the sum of its proper divisors (783169715).

23222220001 is an equidigital number, since it uses as much as digits as its factorization.

23222220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032 (or 10001 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23222220001 its reverse (10002222232), we get a palindrome (33224442233).

The spelling of 23222220001 in words is "twenty-three billion, two hundred twenty-two million, two hundred twenty thousand, one".