22211101212101 has 4 divisors (see below), whose sum is σ = 22211168646732. Its totient is φ = 22211033777472.

The previous prime is 22211101212073. The next prime is 22211101212109. The reversal of 22211101212101 is 10121210111222.

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 10682536612225 + 11528564599876 = 3268415^2 + 3395374^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211101212101 - 2⁶ = 22211101212037 is a prime.

It is a super-2 number, since 2×22211101212101² (a number of 27 digits) contains 22 as substring.

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 22211101212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211101212109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33220820 + ... + 33882813.

It is an arithmetic number, because the mean of its divisors is an integer number (5552792161683).

Almost surely, 2^{22211101212101} is an apocalyptic number.

It is an amenable number.

22211101212101 is a deficient number, since it is larger than the sum of its proper divisors (67434631).

22211101212101 is an equidigital number, since it uses as much as digits as its factorization.

22211101212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67434630.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22211101212101 its reverse (10121210111222), we get a palindrome (32332311323323).

The spelling of 22211101212101 in words is "twenty-two trillion, two hundred eleven billion, one hundred one million, two hundred twelve thousand, one hundred one".