22222232001 has 24 divisors (see below), whose sum is σ = 32776128840. Its totient is φ = 14505163776.

The previous prime is 22222231991. The next prime is 22222232033. The reversal of 22222232001 is 10023222222.

It can be written as a sum of positive squares in 4 ways, for example, as 8013830400 + 14208401601 = 89520^2 + 119199^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22222232001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22222230001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33436 + ... + 213453.

It is an arithmetic number, because the mean of its divisors is an integer number (1365672035).

Almost surely, 2^22222232001 is an apocalyptic number.

It is an amenable number.

22222232001 is a deficient number, since it is larger than the sum of its proper divisors (10553896839).

22222232001 is a wasteful number, since it uses less digits than its factorization.

22222232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247105 (or 247102 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22222232001 its reverse (10023222222), we get a palindrome (32245454223).

The spelling of 22222232001 in words is "twenty-two billion, two hundred twenty-two million, two hundred thirty-two thousand, one".