111201220002101 has 2 divisors, whose sum is σ = 111201220002102. Its totient is φ = 111201220002100.

The previous prime is 111201220002043. The next prime is 111201220002109. The reversal of 111201220002101 is 101200022102111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83525981955025 + 27675238047076 = 9139255^2 + 5260726^2 .

It is a cyclic number.

It is not a de Polignac number, because 111201220002101 - 2³⁸ = 110926342095157 is a prime.

It is a super-2 number, since 2×111201220002101² (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 (111201220002109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600610001050 + 55600610001051.

It is an arithmetic number, because the mean of its divisors is an integer number (55600610001051).

Almost surely, 2^{111201220002101} is an apocalyptic number.

It is an amenable number.

111201220002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201220002101 is an equidigital number, since it uses as much as digits as its factorization.

111201220002101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111201220002101 its reverse (101200022102111), we get a palindrome (212401242104212).

The spelling of 111201220002101 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty million, two thousand, one hundred one".