121120005 has 16 divisors (see below), whose sum is σ = 195030144. Its totient is φ = 64184640.

The previous prime is 121119983. The next prime is 121120009. The reversal of 121120005 is 500021121.

It is not a de Polignac number, because 121120005 - 2⁶ = 121119941 is a prime.

It is a super-2 number, since 2×121120005² = 29340111222400050, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23361 + ... + 28070.

It is an arithmetic number, because the mean of its divisors is an integer number (12189384).

Almost surely, 2^121120005 is an apocalyptic number.

121120005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121120005 is a deficient number, since it is larger than the sum of its proper divisors (73910139).

121120005 is a wasteful number, since it uses less digits than its factorization.

121120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51596.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 121120005 is about 11005.4534209182. The cubic root of 121120005 is about 494.7722041339.

Adding to 121120005 its reverse (500021121), we get a palindrome (621141126).

The spelling of 121120005 in words is "one hundred twenty-one million, one hundred twenty thousand, five".