111110121011211 has 16 divisors (see below), whose sum is σ = 170603108383488. Its totient is φ = 63006829797600.

The previous prime is 111110121011189. The next prime is 111110121011221. The reversal of 111110121011211 is 112110121011111.

It is a happy number.

It is not a de Polignac number, because 111110121011211 - 2¹³ = 111110121003019 is a prime.

It is a super-2 number, since 2×111110121011211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111110121011221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20194493980 + ... + 20194499481.

It is an arithmetic number, because the mean of its divisors is an integer number (10662694273968).

Almost surely, 2^{111110121011211} is an apocalyptic number.

111110121011211 is a deficient number, since it is larger than the sum of its proper divisors (59492987372277).

111110121011211 is a wasteful number, since it uses less digits than its factorization.

111110121011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40388993602.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111110121011211 its reverse (112110121011111), we get a palindrome (223220242022322).

The spelling of 111110121011211 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty-one million, eleven thousand, two hundred eleven".