12011011221201 has 8 divisors (see below), whose sum is σ = 16014996666144. Its totient is φ = 8007183295200.

The previous prime is 12011011221193. The next prime is 12011011221283. The reversal of 12011011221201 is 10212211011021.

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 12011011221201 - 2³ = 12011011221193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12011011221101) 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, 39201700 + ... + 39506901.

It is an arithmetic number, because the mean of its divisors is an integer number (2001874583268).

Almost surely, 2^{12011011221201} is an apocalyptic number.

It is an amenable number.

12011011221201 is a deficient number, since it is larger than the sum of its proper divisors (4003985444943).

12011011221201 is an equidigital number, since it uses as much as digits as its factorization.

12011011221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78759471.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011011221201 its reverse (10212211011021), we get a palindrome (22223222232222).

The spelling of 12011011221201 in words is "twelve trillion, eleven billion, eleven million, two hundred twenty-one thousand, two hundred one".