120012101111001 has 16 divisors (see below), whose sum is σ = 175476998873088. Its totient is φ = 72353797270800.

The previous prime is 120012101110927. The next prime is 120012101111051. The reversal of 120012101111001 is 100111101210021.

It is not a de Polignac number, because 120012101111001 - 2¹⁴ = 120012101094617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120012101111051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9520230181 + ... + 9520242786.

It is an arithmetic number, because the mean of its divisors is an integer number (10967312429568).

Almost surely, 2^{120012101111001} is an apocalyptic number.

120012101111001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120012101111001 is a deficient number, since it is larger than the sum of its proper divisors (55464897762087).

120012101111001 is a wasteful number, since it uses less digits than its factorization.

120012101111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19040473172.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 120012101111001 its reverse (100111101210021), we get a palindrome (220123202321022).

The spelling of 120012101111001 in words is "one hundred twenty trillion, twelve billion, one hundred one million, one hundred eleven thousand, one".