12201101212011 has 4 divisors (see below), whose sum is σ = 16268134949352. Its totient is φ = 8134067474672.

The previous prime is 12201101211967. The next prime is 12201101212061. The reversal of 12201101212011 is 11021210110221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12201101212011 - 2²¹ = 12201099114859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201101212061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033516868666 + ... + 2033516868671.

It is an arithmetic number, because the mean of its divisors is an integer number (4067033737338).

Almost surely, 2^{12201101212011} is an apocalyptic number.

12201101212011 is a deficient number, since it is larger than the sum of its proper divisors (4067033737341).

12201101212011 is an equidigital number, since it uses as much as digits as its factorization.

12201101212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067033737340.

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

Adding to 12201101212011 its reverse (11021210110221), we get a palindrome (23222311322232).

The spelling of 12201101212011 in words is "twelve trillion, two hundred one billion, one hundred one million, two hundred twelve thousand, eleven".