110202111121 has 4 divisors (see below), whose sum is σ = 110223720244. Its totient is φ = 110180502000.

The previous prime is 110202111119. The next prime is 110202111163. The reversal of 110202111121 is 121111202011.

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 9611645521 + 100590465600 = 98039^2 + 317160^2 .

It is a cyclic number.

It is not a de Polignac number, because 110202111121 - 2¹ = 110202111119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110202111221) 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, 10796910 + ... + 10807111.

It is an arithmetic number, because the mean of its divisors is an integer number (27555930061).

Almost surely, 2^110202111121 is an apocalyptic number.

It is an amenable number.

110202111121 is a deficient number, since it is larger than the sum of its proper divisors (21609123).

110202111121 is an equidigital number, since it uses as much as digits as its factorization.

110202111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21609122.

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

Adding to 110202111121 its reverse (121111202011), we get a palindrome (231313313132).

The spelling of 110202111121 in words is "one hundred ten billion, two hundred two million, one hundred eleven thousand, one hundred twenty-one".