12120022100001 has 4 divisors (see below), whose sum is σ = 16160029466672. Its totient is φ = 8080014733332.

The previous prime is 12120022099919. The next prime is 12120022100059. The reversal of 12120022100001 is 10000122002121.

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 not a de Polignac number, because 12120022100001 - 2⁷ = 12120022099873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120022100001.

It is not an unprimeable number, because it can be changed into a prime (12120022107001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020003683331 + ... + 2020003683336.

It is an arithmetic number, because the mean of its divisors is an integer number (4040007366668).

Almost surely, 2^{12120022100001} is an apocalyptic number.

It is an amenable number.

12120022100001 is a deficient number, since it is larger than the sum of its proper divisors (4040007366671).

12120022100001 is an equidigital number, since it uses as much as digits as its factorization.

12120022100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040007366670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120022100001 its reverse (10000122002121), we get a palindrome (22120144102122).

The spelling of 12120022100001 in words is "twelve trillion, one hundred twenty billion, twenty-two million, one hundred thousand, one".