12020001022105 has 16 divisors (see below), whose sum is σ = 14889398745600. Its totient is φ = 9305740270080.

The previous prime is 12020001022103. The next prime is 12020001022123. The reversal of 12020001022105 is 50122010002021.

It is a happy number.

It is not a de Polignac number, because 12020001022105 - 2¹ = 12020001022103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12020001022103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40320286 + ... + 40617304.

It is an arithmetic number, because the mean of its divisors is an integer number (930587421600).

Almost surely, 2^{12020001022105} is an apocalyptic number.

It is an amenable number.

12020001022105 is a deficient number, since it is larger than the sum of its proper divisors (2869397723495).

12020001022105 is a wasteful number, since it uses less digits than its factorization.

12020001022105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558144.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12020001022105 its reverse (50122010002021), we get a palindrome (62142011024126).

The spelling of 12020001022105 in words is "twelve trillion, twenty billion, one million, twenty-two thousand, one hundred five".