120121011112001 has 4 divisors (see below), whose sum is σ = 126443169591600. Its totient is φ = 113798852632404.

The previous prime is 120121011111977. The next prime is 120121011112009. The reversal of 120121011112001 is 100211110121021.

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 120121011112001 - 2¹⁸ = 120121010849857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121011112009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3161079239771 + ... + 3161079239808.

It is an arithmetic number, because the mean of its divisors is an integer number (31610792397900).

Almost surely, 2^{120121011112001} is an apocalyptic number.

It is an amenable number.

120121011112001 is a deficient number, since it is larger than the sum of its proper divisors (6322158479599).

120121011112001 is an equidigital number, since it uses as much as digits as its factorization.

120121011112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322158479598.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 120121011112001 its reverse (100211110121021), we get a palindrome (220332121233022).

The spelling of 120121011112001 in words is "one hundred twenty trillion, one hundred twenty-one billion, eleven million, one hundred twelve thousand, one".