20211113222347 has 2 divisors, whose sum is σ = 20211113222348. Its totient is φ = 20211113222346.

The previous prime is 20211113222291. The next prime is 20211113222429. The reversal of 20211113222347 is 74322231111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211113222347 - 2¹⁹ = 20211112698059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211113222647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105556611173 + 10105556611174.

It is an arithmetic number, because the mean of its divisors is an integer number (10105556611174).

Almost surely, 2^{20211113222347} is an apocalyptic number.

20211113222347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211113222347 is an equidigital number, since it uses as much as digits as its factorization.

20211113222347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 20211113222347 its reverse (74322231111202), we get a palindrome (94533344333549).

The spelling of 20211113222347 in words is "twenty trillion, two hundred eleven billion, one hundred thirteen million, two hundred twenty-two thousand, three hundred forty-seven".