111210211001101 has 2 divisors, whose sum is σ = 111210211001102. Its totient is φ = 111210211001100.

The previous prime is 111210211001089. The next prime is 111210211001111. The reversal of 111210211001101 is 101100112012111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104719303230025 + 6490907771076 = 10233245^2 + 2547726^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210211001101 - 2²⁹ = 111209674130189 is a prime.

It is a super-2 number, since 2×111210211001101² (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 (111210211001111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605105500550 + 55605105500551.

It is an arithmetic number, because the mean of its divisors is an integer number (55605105500551).

Almost surely, 2^{111210211001101} is an apocalyptic number.

It is an amenable number.

111210211001101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111210211001101 is an equidigital number, since it uses as much as digits as its factorization.

111210211001101 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 111210211001101 its reverse (101100112012111), we get a palindrome (212310323013212).

The spelling of 111210211001101 in words is "one hundred eleven trillion, two hundred ten billion, two hundred eleven million, one thousand, one hundred one".