12011011220201 has 4 divisors (see below), whose sum is σ = 13726869965952. Its totient is φ = 10295152474452.

The previous prime is 12011011220189. The next prime is 12011011220203. The reversal of 12011011220201 is 10202211011021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011011220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011011220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857929372865 + ... + 857929372878.

It is an arithmetic number, because the mean of its divisors is an integer number (3431717491488).

Almost surely, 2^{12011011220201} is an apocalyptic number.

It is an amenable number.

12011011220201 is a deficient number, since it is larger than the sum of its proper divisors (1715858745751).

12011011220201 is an equidigital number, since it uses as much as digits as its factorization.

12011011220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715858745750.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011011220201 its reverse (10202211011021), we get a palindrome (22213222231222).

The spelling of 12011011220201 in words is "twelve trillion, eleven billion, eleven million, two hundred twenty thousand, two hundred one".