120001200001 has 4 divisors (see below), whose sum is σ = 120457478592. Its totient is φ = 119544921412.

The previous prime is 120001199999. The next prime is 120001200013. The reversal of 120001200001 is 100002100021.

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 an emirpimes, since its reverse is a distinct semiprime: 100002100021 = 739 ⋅135320839.

It is a cyclic number.

It is not a de Polignac number, because 120001200001 - 2¹ = 120001199999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001200301) 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, 228138901 + ... + 228139426.

It is an arithmetic number, because the mean of its divisors is an integer number (30114369648).

Almost surely, 2^120001200001 is an apocalyptic number.

It is an amenable number.

120001200001 is a deficient number, since it is larger than the sum of its proper divisors (456278591).

120001200001 is an equidigital number, since it uses as much as digits as its factorization.

120001200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456278590.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 120001200001 its reverse (100002100021), we get a palindrome (220003300022).

The spelling of 120001200001 in words is "one hundred twenty billion, one million, two hundred thousand, one".