120012000001 has 4 divisors (see below), whose sum is σ = 120536070100. Its totient is φ = 119487929904.

The previous prime is 120011999971. The next prime is 120012000011. The reversal of 120012000001 is 100000210021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100000210021 = 47 ⋅2127664043.

It can be written as a sum of positive squares in 2 ways, for example, as 73701390400 + 46310609601 = 271480^2 + 215199^2 .

It is a cyclic number.

It is not a de Polignac number, because 120012000001 - 2¹³ = 120011991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012000011) 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, 262034706 + ... + 262035163.

It is an arithmetic number, because the mean of its divisors is an integer number (30134017525).

Almost surely, 2^120012000001 is an apocalyptic number.

It is an amenable number.

120012000001 is a deficient number, since it is larger than the sum of its proper divisors (524070099).

120012000001 is an equidigital number, since it uses as much as digits as its factorization.

120012000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524070098.

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

Adding to 120012000001 its reverse (100000210021), we get a palindrome (220012210022).

The spelling of 120012000001 in words is "one hundred twenty billion, twelve million, one", and thus it is an aban number.