12011121200011 has 16 divisors (see below), whose sum is σ = 12677118382080. Its totient is φ = 11363108739840.

The previous prime is 12011121199997. The next prime is 12011121200093. The reversal of 12011121200011 is 11000212111021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12011121200011 - 2¹³ = 12011121191819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011121199964 and 12011121200000.

It is not an unprimeable number, because it can be changed into a prime (12011121200411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546886 + ... + 6050011.

It is an arithmetic number, because the mean of its divisors is an integer number (792319898880).

Almost surely, 2^{12011121200011} is an apocalyptic number.

12011121200011 is a deficient number, since it is larger than the sum of its proper divisors (665997182069).

12011121200011 is an equidigital number, since it uses as much as digits as its factorization.

12011121200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9597834.

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

Adding to 12011121200011 its reverse (11000212111021), we get a palindrome (23011333311032).

The spelling of 12011121200011 in words is "twelve trillion, eleven billion, one hundred twenty-one million, two hundred thousand, eleven".