12210120110987 has 4 divisors (see below), whose sum is σ = 12210127608360. Its totient is φ = 12210112613616.

The previous prime is 12210120110971. The next prime is 12210120111029. The reversal of 12210120110987 is 78901102101221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12210120110987 - 2⁴ = 12210120110971 is a prime.

It is a super-2 number, since 2×12210120110987² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210120110087) 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, 161753 + ... + 4944330.

It is an arithmetic number, because the mean of its divisors is an integer number (3052531902090).

Almost surely, 2^{12210120110987} is an apocalyptic number.

12210120110987 is a deficient number, since it is larger than the sum of its proper divisors (7497373).

12210120110987 is an equidigital number, since it uses as much as digits as its factorization.

12210120110987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497372.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 12210120110987 in words is "twelve trillion, two hundred ten billion, one hundred twenty million, one hundred ten thousand, nine hundred eighty-seven".