12002220100001 has 4 divisors (see below), whose sum is σ = 12002230351104. Its totient is φ = 12002209848900.

The previous prime is 12002220099997. The next prime is 12002220100093. The reversal of 12002220100001 is 10000102220021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12002220100001 - 2² = 12002220099997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002220100201) 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, 3103385 + ... + 5799606.

It is an arithmetic number, because the mean of its divisors is an integer number (3000557587776).

Almost surely, 2^{12002220100001} is an apocalyptic number.

It is an amenable number.

12002220100001 is a deficient number, since it is larger than the sum of its proper divisors (10251103).

12002220100001 is an equidigital number, since it uses as much as digits as its factorization.

12002220100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251102.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12002220100001 its reverse (10000102220021), we get a palindrome (22002322320022).

The spelling of 12002220100001 in words is "twelve trillion, two billion, two hundred twenty million, one hundred thousand, one".