12011111010101 has 8 divisors (see below), whose sum is σ = 13727304771264. Its totient is φ = 10294997438880.

The previous prime is 12011111010079. The next prime is 12011111010137. The reversal of 12011111010101 is 10101011111021.

It is a happy number.

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

It is not a de Polignac number, because 12011111010101 - 2⁶ = 12011111010037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011111010601) 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, 19726175 + ... + 20325948.

It is an arithmetic number, because the mean of its divisors is an integer number (1715913096408).

Almost surely, 2^{12011111010101} is an apocalyptic number.

It is an amenable number.

12011111010101 is a deficient number, since it is larger than the sum of its proper divisors (1716193761163).

12011111010101 is an equidigital number, since it uses as much as digits as its factorization.

12011111010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40094971.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 12011111010101 its reverse (10101011111021), we get a palindrome (22112122121122).

The spelling of 12011111010101 in words is "twelve trillion, eleven billion, one hundred eleven million, ten thousand, one hundred one".