12121020100011 has 8 divisors (see below), whose sum is σ = 16162880958784. Its totient is φ = 8079919653960.

The previous prime is 12121020099779. The next prime is 12121020100019. The reversal of 12121020100011 is 11000102012121.

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

It is not a de Polignac number, because 12121020100011 - 2¹⁵ = 12121020067243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12121020100011.

It is not an unprimeable number, because it can be changed into a prime (12121020100019) 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, 190065985 + ... + 190129746.

It is an arithmetic number, because the mean of its divisors is an integer number (2020360119848).

Almost surely, 2^{12121020100011} is an apocalyptic number.

12121020100011 is a deficient number, since it is larger than the sum of its proper divisors (4041860858773).

12121020100011 is a wasteful number, since it uses less digits than its factorization.

12121020100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380206361.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12121020100011 its reverse (11000102012121), we get a palindrome (23121122112132).

The spelling of 12121020100011 in words is "twelve trillion, one hundred twenty-one billion, twenty million, one hundred thousand, eleven".