120101011121111 has 4 divisors (see below), whose sum is σ = 120101036352192. Its totient is φ = 120100985890032.

The previous prime is 120101011121057. The next prime is 120101011121213. The reversal of 120101011121111 is 111121110101021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120101011121111 - 2³⁸ = 119826133214167 is a prime.

It is a super-2 number, since 2×120101011121111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101011124111) 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, 3065831 + ... + 15798776.

It is an arithmetic number, because the mean of its divisors is an integer number (30025259088048).

Almost surely, 2^{120101011121111} is an apocalyptic number.

120101011121111 is a deficient number, since it is larger than the sum of its proper divisors (25231081).

120101011121111 is an equidigital number, since it uses as much as digits as its factorization.

120101011121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25231080.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 120101011121111 its reverse (111121110101021), we get a palindrome (231222121222132).

The spelling of 120101011121111 in words is "one hundred twenty trillion, one hundred one billion, eleven million, one hundred twenty-one thousand, one hundred eleven".