12101142121 has 8 divisors (see below), whose sum is σ = 12239337600. Its totient is φ = 11962996320.

The previous prime is 12101142103. The next prime is 12101142133. The reversal of 12101142121 is 12124110121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101142121 - 2¹⁵ = 12101109353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101142095 and 12101142104.

It is not an unprimeable number, because it can be changed into a prime (12101142821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724300 + ... + 740818.

It is an arithmetic number, because the mean of its divisors is an integer number (1529917200).

Almost surely, 2^12101142121 is an apocalyptic number.

It is an amenable number.

12101142121 is a deficient number, since it is larger than the sum of its proper divisors (138195479).

12101142121 is an equidigital number, since it uses as much as digits as its factorization.

12101142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24839.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101142121 its reverse (12124110121), we get a palindrome (24225252242).

The spelling of 12101142121 in words is "twelve billion, one hundred one million, one hundred forty-two thousand, one hundred twenty-one".