1210020002105 has 16 divisors (see below), whose sum is σ = 1476681148800. Its totient is φ = 951578939520.

The previous prime is 1210020002101. The next prime is 1210020002119. The reversal of 1210020002105 is 5012000200121.

It is not a de Polignac number, because 1210020002105 - 2² = 1210020002101 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210020002105.

It is not an unprimeable number, because it can be changed into a prime (1210020002101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16376645 + ... + 16450365.

It is an arithmetic number, because the mean of its divisors is an integer number (92292571800).

Almost surely, 2^{1210020002105} is an apocalyptic number.

It is an amenable number.

1210020002105 is a deficient number, since it is larger than the sum of its proper divisors (266661146695).

1210020002105 is an equidigital number, since it uses as much as digits as its factorization.

1210020002105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129424.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1210020002105 its reverse (5012000200121), we get a palindrome (6222020202226).

The spelling of 1210020002105 in words is "one trillion, two hundred ten billion, twenty million, two thousand, one hundred five".