111121010201101 has 2 divisors, whose sum is σ = 111121010201102. Its totient is φ = 111121010201100.

The previous prime is 111121010201077. The next prime is 111121010201111. The reversal of 111121010201101 is 101102010121111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84026372228100 + 27094637973001 = 9166590^2 + 5205251^2 .

It is an emirp because it is prime and its reverse (101102010121111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111121010201101 - 2⁷ = 111121010200973 is a prime.

It is a super-2 number, since 2×111121010201101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111121010201111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560505100550 + 55560505100551.

It is an arithmetic number, because the mean of its divisors is an integer number (55560505100551).

Almost surely, 2^{111121010201101} is an apocalyptic number.

It is an amenable number.

111121010201101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121010201101 is an equidigital number, since it uses as much as digits as its factorization.

111121010201101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111121010201101 its reverse (101102010121111), we get a palindrome (212223020322212).

The spelling of 111121010201101 in words is "one hundred eleven trillion, one hundred twenty-one billion, ten million, two hundred one thousand, one hundred one".