121120265027 has 4 divisors (see below), whose sum is σ = 125296825920. Its totient is φ = 116943704136.

The previous prime is 121120265011. The next prime is 121120265033. The reversal of 121120265027 is 720562021121.

It is a happy number.

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 121120265027 - 2⁴ = 121120265011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4176560863 = 121120265027 / (1 + 2 + 1 + 1 + 2 + 0 + 2 + 6 + 5 + 0 + 2 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120261027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088280403 + ... + 2088280460.

It is an arithmetic number, because the mean of its divisors is an integer number (31324206480).

Almost surely, 2^121120265027 is an apocalyptic number.

121120265027 is a deficient number, since it is larger than the sum of its proper divisors (4176560893).

121120265027 is an equidigital number, since it uses as much as digits as its factorization.

121120265027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176560892.

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 121120265027 its reverse (720562021121), we get a palindrome (841682286148).

The spelling of 121120265027 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred sixty-five thousand, twenty-seven".