121120120011 has 32 divisors (see below), whose sum is σ = 180325297152. Its totient is φ = 71677740960.

The previous prime is 121120120001. The next prime is 121120120013. The reversal of 121120120011 is 110021021121.

It is not a de Polignac number, because 121120120011 - 2¹⁵ = 121120087243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121120120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5669596 + ... + 5690918.

It is an arithmetic number, because the mean of its divisors is an integer number (5635165536).

Almost surely, 2^121120120011 is an apocalyptic number.

121120120011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121120120011 is a deficient number, since it is larger than the sum of its proper divisors (59205177141).

121120120011 is a wasteful number, since it uses less digits than its factorization.

121120120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25383.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121120120011 its reverse (110021021121), we get a palindrome (231141141132).

The spelling of 121120120011 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty thousand, eleven".