111401220310211 has 4 divisors (see below), whose sum is σ = 119970544949472. Its totient is φ = 102831895670952.

The previous prime is 111401220310199. The next prime is 111401220310217. The reversal of 111401220310211 is 112013022104111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111401220310211 - 2¹⁰ = 111401220309187 is a prime.

It is a super-2 number, since 2×111401220310211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111401220310217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4284662319611 + ... + 4284662319636.

It is an arithmetic number, because the mean of its divisors is an integer number (29992636237368).

Almost surely, 2^{111401220310211} is an apocalyptic number.

111401220310211 is a deficient number, since it is larger than the sum of its proper divisors (8569324639261).

111401220310211 is an equidigital number, since it uses as much as digits as its factorization.

111401220310211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569324639260.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 111401220310211 its reverse (112013022104111), we get a palindrome (223414242414322).

The spelling of 111401220310211 in words is "one hundred eleven trillion, four hundred one billion, two hundred twenty million, three hundred ten thousand, two hundred eleven".