111202222201121 has 4 divisors (see below), whose sum is σ = 111208235425812. Its totient is φ = 111196208976432.

The previous prime is 111202222201079. The next prime is 111202222201127. The reversal of 111202222201121 is 121102222202111.

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 12711285653521 + 98490936547600 = 3565289^2 + 9924260^2 .

It is a cyclic number.

It is not a de Polignac number, because 111202222201121 - 2¹⁴ = 111202222184737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111202222201093 and 111202222201102.

It is not an unprimeable number, because it can be changed into a prime (111202222201127) 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, 3006584606 + ... + 3006621591.

It is an arithmetic number, because the mean of its divisors is an integer number (27802058856453).

Almost surely, 2^{111202222201121} is an apocalyptic number.

It is an amenable number.

111202222201121 is a deficient number, since it is larger than the sum of its proper divisors (6013224691).

111202222201121 is an equidigital number, since it uses as much as digits as its factorization.

111202222201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013224690.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111202222201121 its reverse (121102222202111), we get a palindrome (232304444403232).

The spelling of 111202222201121 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-one".