12111001220001 has 8 divisors (see below), whose sum is σ = 16153892918784. Its totient is φ = 8071055167280.

The previous prime is 12111001219957. The next prime is 12111001220053. The reversal of 12111001220001 is 10002210011121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111001220001 - 2⁹ = 12111001219489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111001224001) 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, 736401921 + ... + 736418366.

It is an arithmetic number, because the mean of its divisors is an integer number (2019236614848).

Almost surely, 2^{12111001220001} is an apocalyptic number.

It is an amenable number.

12111001220001 is a deficient number, since it is larger than the sum of its proper divisors (4042891698783).

12111001220001 is a wasteful number, since it uses less digits than its factorization.

12111001220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472823031.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12111001220001 its reverse (10002210011121), we get a palindrome (22113211231122).

The spelling of 12111001220001 in words is "twelve trillion, one hundred eleven billion, one million, two hundred twenty thousand, one".