12201320011 has 4 divisors (see below), whose sum is σ = 12498913224. Its totient is φ = 11903726800.

The previous prime is 12201319997. The next prime is 12201320029. The reversal of 12201320011 is 11002310221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12201320011 - 2¹⁹ = 12200795723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201319973 and 12201320000.

It is not an unprimeable number, because it can be changed into a prime (12201320081) 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, 148796545 + ... + 148796626.

It is an arithmetic number, because the mean of its divisors is an integer number (3124728306).

Almost surely, 2^12201320011 is an apocalyptic number.

12201320011 is a deficient number, since it is larger than the sum of its proper divisors (297593213).

12201320011 is an equidigital number, since it uses as much as digits as its factorization.

12201320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297593212.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12201320011 its reverse (11002310221), we get a palindrome (23203630232).

It can be divided in two parts, 1220 and 1320011, that added together give a palindrome (1321231).

The spelling of 12201320011 in words is "twelve billion, two hundred one million, three hundred twenty thousand, eleven".