12120102121 has 4 divisors (see below), whose sum is σ = 12147461712. Its totient is φ = 12092742532.

The previous prime is 12120102101. The next prime is 12120102131.

12120102121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120102121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120102101) 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, 13679131 + ... + 13680016.

It is an arithmetic number, because the mean of its divisors is an integer number (3036865428).

Almost surely, 2^12120102121 is an apocalyptic number.

It is an amenable number.

12120102121 is a deficient number, since it is larger than the sum of its proper divisors (27359591).

12120102121 is an equidigital number, since it uses as much as digits as its factorization.

12120102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27359590.

The product of its (nonzero) digits is 16, while the sum is 13.

The spelling of 12120102121 in words is "twelve billion, one hundred twenty million, one hundred two thousand, one hundred twenty-one".