12111122210001 has 8 divisors (see below), whose sum is σ = 16255104423744. Its totient is φ = 8020610734800.

The previous prime is 12111122209981. The next prime is 12111122210051. The reversal of 12111122210001 is 10001222111121.

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 12111122210001 - 2¹⁷ = 12111122078929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111122210051) 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, 13367684106 + ... + 13367685011.

It is an arithmetic number, because the mean of its divisors is an integer number (2031888052968).

Almost surely, 2^{12111122210001} is an apocalyptic number.

It is an amenable number.

12111122210001 is a deficient number, since it is larger than the sum of its proper divisors (4143982213743).

12111122210001 is a wasteful number, since it uses less digits than its factorization.

12111122210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26735369271.

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

Adding to 12111122210001 its reverse (10001222111121), we get a palindrome (22112344321122).

The spelling of 12111122210001 in words is "twelve trillion, one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, one".