12011011201 has 4 divisors (see below), whose sum is σ = 13726869952. Its totient is φ = 10295152452.

The previous prime is 12011011193. The next prime is 12011011223. The reversal of 12011011201 is 10211011021.

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 not a de Polignac number, because 12011011201 - 2³ = 12011011193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011011501) 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, 857929365 + ... + 857929378.

It is an arithmetic number, because the mean of its divisors is an integer number (3431717488).

Almost surely, 2^12011011201 is an apocalyptic number.

It is an amenable number.

12011011201 is a deficient number, since it is larger than the sum of its proper divisors (1715858751).

12011011201 is an equidigital number, since it uses as much as digits as its factorization.

12011011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715858750.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12011011201 its reverse (10211011021), we get a palindrome (22222022222).

The spelling of 12011011201 in words is "twelve billion, eleven million, eleven thousand, two hundred one".