11104202121 has 4 divisors (see below), whose sum is σ = 14805602832. Its totient is φ = 7402801412.

The previous prime is 11104202113. The next prime is 11104202141. The reversal of 11104202121 is 12120240111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11104202121 - 2³ = 11104202113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11104202121.

It is not an unprimeable number, because it can be changed into a prime (11104202111) 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, 1850700351 + ... + 1850700356.

It is an arithmetic number, because the mean of its divisors is an integer number (3701400708).

Almost surely, 2^11104202121 is an apocalyptic number.

It is an amenable number.

11104202121 is a deficient number, since it is larger than the sum of its proper divisors (3701400711).

11104202121 is an equidigital number, since it uses as much as digits as its factorization.

11104202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701400710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11104202121 its reverse (12120240111), we get a palindrome (23224442232).

The spelling of 11104202121 in words is "eleven billion, one hundred four million, two hundred two thousand, one hundred twenty-one".