120122110987 has 4 divisors (see below), whose sum is σ = 120646661920. Its totient is φ = 119597560056.

The previous prime is 120122110981. The next prime is 120122111009. The reversal of 120122110987 is 789011221021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789011221021 = 32579 ⋅24218399.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120122110987 is a prime.

It is a super-2 number, since 2×120122110987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120122110981) 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, 262275123 + ... + 262275580.

It is an arithmetic number, because the mean of its divisors is an integer number (30161665480).

Almost surely, 2^120122110987 is an apocalyptic number.

120122110987 is a deficient number, since it is larger than the sum of its proper divisors (524550933).

120122110987 is an equidigital number, since it uses as much as digits as its factorization.

120122110987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524550932.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 120122110987 in words is "one hundred twenty billion, one hundred twenty-two million, one hundred ten thousand, nine hundred eighty-seven".