12110020011121 has 4 divisors (see below), whose sum is σ = 12110129902144. Its totient is φ = 12109910120100.

The previous prime is 12110020011119. The next prime is 12110020011127. The reversal of 12110020011121 is 12111002001121.

It is a happy number.

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 12110020011121 - 2¹ = 12110020011119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110020011127) 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, 54780045 + ... + 55000666.

It is an arithmetic number, because the mean of its divisors is an integer number (3027532475536).

Almost surely, 2^{12110020011121} is an apocalyptic number.

It is an amenable number.

12110020011121 is a deficient number, since it is larger than the sum of its proper divisors (109891023).

12110020011121 is a wasteful number, since it uses less digits than its factorization.

12110020011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109891022.

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

Adding to 12110020011121 its reverse (12111002001121), we get a palindrome (24221022012242).

The spelling of 12110020011121 in words is "twelve trillion, one hundred ten billion, twenty million, eleven thousand, one hundred twenty-one".