22111102022201 has 4 divisors (see below), whose sum is σ = 22873553816100. Its totient is φ = 21348650228304.

The previous prime is 22111102022171. The next prime is 22111102022239. The reversal of 22111102022201 is 10222020111122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7627566858025 + 14483535164176 = 2761805^2 + 3805724^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111102022201 - 2³⁰ = 22110028280377 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 22111102022201.

It is not an unprimeable number, because it can be changed into a prime (22111102052201) 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, 381225896906 + ... + 381225896963.

It is an arithmetic number, because the mean of its divisors is an integer number (5718388454025).

Almost surely, 2^{22111102022201} is an apocalyptic number.

It is an amenable number.

22111102022201 is a deficient number, since it is larger than the sum of its proper divisors (762451793899).

22111102022201 is an equidigital number, since it uses as much as digits as its factorization.

22111102022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762451793898.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111102022201 its reverse (10222020111122), we get a palindrome (32333122133323).

The spelling of 22111102022201 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, twenty-two thousand, two hundred one".