22201100020201 has 4 divisors (see below), whose sum is σ = 22201960520404. Its totient is φ = 22200239520000.

The previous prime is 22201100020193. The next prime is 22201100020217. The reversal of 22201100020201 is 10202000110222.

It is a happy number.

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 17496317779600 + 4704782240601 = 4182860^2 + 2169051^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201100020201 - 2³ = 22201100020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201100020261) 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, 430211400 + ... + 430263001.

It is an arithmetic number, because the mean of its divisors is an integer number (5550490130101).

Almost surely, 2^{22201100020201} is an apocalyptic number.

It is an amenable number.

22201100020201 is a deficient number, since it is larger than the sum of its proper divisors (860500203).

22201100020201 is an equidigital number, since it uses as much as digits as its factorization.

22201100020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860500202.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22201100020201 its reverse (10202000110222), we get a palindrome (32403100130423).

The spelling of 22201100020201 in words is "twenty-two trillion, two hundred one billion, one hundred million, twenty thousand, two hundred one".