12121010011101 has 8 divisors (see below), whose sum is σ = 16228967379840. Its totient is φ = 8046862991552.

The previous prime is 12121010011093. The next prime is 12121010011153. The reversal of 12121010011101 is 10111001012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12121010011101 - 2³ = 12121010011093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121010018101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8452586460 + ... + 8452587893.

It is an arithmetic number, because the mean of its divisors is an integer number (2028620922480).

Almost surely, 2^{12121010011101} is an apocalyptic number.

It is an amenable number.

12121010011101 is a deficient number, since it is larger than the sum of its proper divisors (4107957368739).

12121010011101 is a wasteful number, since it uses less digits than its factorization.

12121010011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16905174595.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12121010011101 its reverse (10111001012121), we get a palindrome (22232011023222).

The spelling of 12121010011101 in words is "twelve trillion, one hundred twenty-one billion, ten million, eleven thousand, one hundred one".