120012012121101 has 4 divisors (see below), whose sum is σ = 160016016161472. Its totient is φ = 80008008080732.

The previous prime is 120012012121093. The next prime is 120012012121121. The reversal of 120012012121101 is 101121210210021.

It is a happy number.

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 120012012121101 - 2³ = 120012012121093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012012121121) 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, 20002002020181 + ... + 20002002020186.

It is an arithmetic number, because the mean of its divisors is an integer number (40004004040368).

Almost surely, 2^{120012012121101} is an apocalyptic number.

It is an amenable number.

120012012121101 is a deficient number, since it is larger than the sum of its proper divisors (40004004040371).

120012012121101 is an equidigital number, since it uses as much as digits as its factorization.

120012012121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40004004040370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120012012121101 its reverse (101121210210021), we get a palindrome (221133222331122).

The spelling of 120012012121101 in words is "one hundred twenty trillion, twelve billion, twelve million, one hundred twenty-one thousand, one hundred one".