22011201221101 has 4 divisors (see below), whose sum is σ = 22426506904572. Its totient is φ = 21595895537632.

The previous prime is 22011201221069. The next prime is 22011201221167. The reversal of 22011201221101 is 10112210211022.

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 17842556162025 + 4168645059076 = 4224045^2 + 2041726^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011201221101 - 2⁵ = 22011201221069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011201321101) 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, 207652841656 + ... + 207652841761.

It is an arithmetic number, because the mean of its divisors is an integer number (5606626726143).

Almost surely, 2^{22011201221101} is an apocalyptic number.

It is an amenable number.

22011201221101 is a deficient number, since it is larger than the sum of its proper divisors (415305683471).

22011201221101 is an equidigital number, since it uses as much as digits as its factorization.

22011201221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415305683470.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22011201221101 its reverse (10112210211022), we get a palindrome (32123411432123).

The spelling of 22011201221101 in words is "twenty-two trillion, eleven billion, two hundred one million, two hundred twenty-one thousand, one hundred one".