22011001020001 has 6 divisors (see below), whose sum is σ = 25604633839650. Its totient is φ = 18866572302816.

The previous prime is 22011001019999. The next prime is 22011001020013. The reversal of 22011001020001 is 10002010011022.

It can be written as a sum of positive squares in only one way, i.e., 13358878800400 + 8652122219601 = 3654980^2 + 2941449^2 .

It is not a de Polignac number, because 22011001020001 - 2¹ = 22011001019999 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 22011001020001.

It is not an unprimeable number, because it can be changed into a prime (22011001020301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224602051176 + ... + 224602051273.

It is an arithmetic number, because the mean of its divisors is an integer number (4267438973275).

Almost surely, 2^{22011001020001} is an apocalyptic number.

It is an amenable number.

22011001020001 is a deficient number, since it is larger than the sum of its proper divisors (3593632819649).

22011001020001 is an equidigital number, since it uses as much as digits as its factorization.

22011001020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449204102463 (or 449204102456 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22011001020001 its reverse (10002010011022), we get a palindrome (32013011031023).

The spelling of 22011001020001 in words is "twenty-two trillion, eleven billion, one million, twenty thousand, one".