12111221202001 has 8 divisors (see below), whose sum is σ = 12125766988544. Its totient is φ = 12096680104080.

The previous prime is 12111221201957. The next prime is 12111221202007. The reversal of 12111221202001 is 10020212211121.

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 12111221202001 - 2⁷ = 12111221201873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111221202007) 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, 4010911 + ... + 6349003.

It is an arithmetic number, because the mean of its divisors is an integer number (1515720873568).

Almost surely, 2^{12111221202001} is an apocalyptic number.

It is an amenable number.

12111221202001 is a deficient number, since it is larger than the sum of its proper divisors (14545786543).

12111221202001 is an equidigital number, since it uses as much as digits as its factorization.

12111221202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344311.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12111221202001 its reverse (10020212211121), we get a palindrome (22131433413122).

The spelling of 12111221202001 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-one million, two hundred two thousand, one".