22113301320221 has 4 divisors (see below), whose sum is σ = 22113310885692. Its totient is φ = 22113291754752.

The previous prime is 22113301320197. The next prime is 22113301320241. The reversal of 22113301320221 is 12202310331122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19126505104996 + 2986796215225 = 4373386^2 + 1728235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22113301320221 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 (22113301320241) 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, 1082621 + ... + 6737853.

It is an arithmetic number, because the mean of its divisors is an integer number (5528327721423).

Almost surely, 2^{22113301320221} is an apocalyptic number.

It is an amenable number.

22113301320221 is a deficient number, since it is larger than the sum of its proper divisors (9565471).

22113301320221 is an equidigital number, since it uses as much as digits as its factorization.

22113301320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9565470.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22113301320221 its reverse (12202310331122), we get a palindrome (34315611651343).

The spelling of 22113301320221 in words is "twenty-two trillion, one hundred thirteen billion, three hundred one million, three hundred twenty thousand, two hundred twenty-one".