22120101200101 has 4 divisors (see below), whose sum is σ = 22130096729292. Its totient is φ = 22110105670912.

The previous prime is 22120101200089. The next prime is 22120101200167. The reversal of 22120101200101 is 10100210102122.

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 11187192015076 + 10932909185025 = 3344726^2 + 3306495^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120101200101 - 2⁹ = 22120101199589 is a prime.

It is a super-3 number, since 3×22120101200101³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120101200191) 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, 4997761276 + ... + 4997765701.

It is an arithmetic number, because the mean of its divisors is an integer number (5532524182323).

Almost surely, 2^{22120101200101} is an apocalyptic number.

It is an amenable number.

22120101200101 is a deficient number, since it is larger than the sum of its proper divisors (9995529191).

22120101200101 is an equidigital number, since it uses as much as digits as its factorization.

22120101200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9995529190.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22120101200101 its reverse (10100210102122), we get a palindrome (32220311302223).

The spelling of 22120101200101 in words is "twenty-two trillion, one hundred twenty billion, one hundred one million, two hundred thousand, one hundred one".