111012222201121 has 4 divisors (see below), whose sum is σ = 117542352918852. Its totient is φ = 104482091483392.

The previous prime is 111012222201017. The next prime is 111012222201131. The reversal of 111012222201121 is 121102222210111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89577914922721 + 21434307278400 = 9464561^2 + 4629720^2 .

It is not a de Polignac number, because 111012222201121 - 2²⁷ = 111012087983393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111012222201131) 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, 3265065358840 + ... + 3265065358873.

It is an arithmetic number, because the mean of its divisors is an integer number (29385588229713).

Almost surely, 2^{111012222201121} is an apocalyptic number.

It is an amenable number.

111012222201121 is a deficient number, since it is larger than the sum of its proper divisors (6530130717731).

111012222201121 is an equidigital number, since it uses as much as digits as its factorization.

111012222201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530130717730.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111012222201121 its reverse (121102222210111), we get a palindrome (232114444411232).

The spelling of 111012222201121 in words is "one hundred eleven trillion, twelve billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-one".