221010340040111 has 2 divisors, whose sum is σ = 221010340040112. Its totient is φ = 221010340040110.

The previous prime is 221010340040093. The next prime is 221010340040117. The reversal of 221010340040111 is 111040043010122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221010340040111 - 2⁴⁶ = 150641595862447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221010340040117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505170020055 + 110505170020056.

It is an arithmetic number, because the mean of its divisors is an integer number (110505170020056).

Almost surely, 2^{221010340040111} is an apocalyptic number.

221010340040111 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010340040111 is an equidigital number, since it uses as much as digits as its factorization.

221010340040111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221010340040111 its reverse (111040043010122), we get a palindrome (332050383050233).

The spelling of 221010340040111 in words is "two hundred twenty-one trillion, ten billion, three hundred forty million, forty thousand, one hundred eleven".