12120101100105 has 8 divisors (see below), whose sum is σ = 19392161760192. Its totient is φ = 6464053920048.

The previous prime is 12120101100059. The next prime is 12120101100127. The reversal of 12120101100105 is 50100110102121.

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

It is not a de Polignac number, because 12120101100105 - 2⁸ = 12120101099849 is a prime.

It is a super-2 number, since 2×12120101100105² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 808006740007 = 12120101100105 / (1 + 2 + 1 + 2 + 0 + 1 + 0 + 1 + 1 + 0 + 0 + 1 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404003369989 + ... + 404003370018.

It is an arithmetic number, because the mean of its divisors is an integer number (2424020220024).

Almost surely, 2^{12120101100105} is an apocalyptic number.

12120101100105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12120101100105 is a deficient number, since it is larger than the sum of its proper divisors (7272060660087).

12120101100105 is an equidigital number, since it uses as much as digits as its factorization.

12120101100105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808006740015.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 12120101100105 its reverse (50100110102121), we get a palindrome (62220211202226).

The spelling of 12120101100105 in words is "twelve trillion, one hundred twenty billion, one hundred one million, one hundred thousand, one hundred five".