111012201121 has 4 divisors (see below), whose sum is σ = 111131698500. Its totient is φ = 110892703744.

The previous prime is 111012201119. The next prime is 111012201161. The reversal of 111012201121 is 121102210111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121102210111 = 5399 ⋅22430489.

It can be written as a sum of positive squares in 2 ways, for example, as 1811694096 + 109200507025 = 42564^2 + 330455^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012201121 - 2¹ = 111012201119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111012201161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59747296 + ... + 59749153.

It is an arithmetic number, because the mean of its divisors is an integer number (27782924625).

Almost surely, 2^111012201121 is an apocalyptic number.

It is an amenable number.

111012201121 is a deficient number, since it is larger than the sum of its proper divisors (119497379).

111012201121 is an equidigital number, since it uses as much as digits as its factorization.

111012201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119497378.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111012201121 its reverse (121102210111), we get a palindrome (232114411232).

The spelling of 111012201121 in words is "one hundred eleven billion, twelve million, two hundred one thousand, one hundred twenty-one".