12001022220001 has 4 divisors (see below), whose sum is σ = 12072884628672. Its totient is φ = 11929159811332.

The previous prime is 12001022219983. The next prime is 12001022220071. The reversal of 12001022220001 is 10002222010021.

It is a happy number.

12001022220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12001022220001 - 2⁷ = 12001022219873 is a prime.

It is a super-5 number, since 5×12001022220001⁵ (a number of 67 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001022220071) 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, 35931204085 + ... + 35931204418.

It is an arithmetic number, because the mean of its divisors is an integer number (3018221157168).

Almost surely, 2^{12001022220001} is an apocalyptic number.

It is an amenable number.

12001022220001 is a deficient number, since it is larger than the sum of its proper divisors (71862408671).

12001022220001 is an equidigital number, since it uses as much as digits as its factorization.

12001022220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71862408670.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12001022220001 its reverse (10002222010021), we get a palindrome (22003244230022).

The spelling of 12001022220001 in words is "twelve trillion, one billion, twenty-two million, two hundred twenty thousand, one".