221020000011113 has 2 divisors, whose sum is σ = 221020000011114. Its totient is φ = 221020000011112.

The previous prime is 221020000011047. The next prime is 221020000011157. The reversal of 221020000011113 is 311110000020122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220546171535209 + 473828475904 = 14850797^2 + 688352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221020000011113 is a prime.

It is not a weakly prime, because it can be changed into another prime (221020000011163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510000005556 + 110510000005557.

It is an arithmetic number, because the mean of its divisors is an integer number (110510000005557).

Almost surely, 2^{221020000011113} is an apocalyptic number.

It is an amenable number.

221020000011113 is a deficient number, since it is larger than the sum of its proper divisors (1).

221020000011113 is an equidigital number, since it uses as much as digits as its factorization.

221020000011113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221020000011113 its reverse (311110000020122), we get a palindrome (532130000031235).

Subtracting 221020000011113 from its reverse (311110000020122), we obtain a palindrome (90090000009009).

The spelling of 221020000011113 in words is "two hundred twenty-one trillion, twenty billion, eleven thousand, one hundred thirteen".