1210120102205 has 16 divisors (see below), whose sum is σ = 1746940298880. Its totient is φ = 786123133632.

The previous prime is 1210120102133. The next prime is 1210120102291. The reversal of 1210120102205 is 5022010210121.

It is a cyclic number.

It is not a de Polignac number, because 1210120102205 - 2³⁰ = 1209046360381 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909864074 + ... + 909865403.

It is an arithmetic number, because the mean of its divisors is an integer number (109183768680).

Almost surely, 2^{1210120102205} is an apocalyptic number.

It is an amenable number.

1210120102205 is a deficient number, since it is larger than the sum of its proper divisors (536820196675).

1210120102205 is a wasteful number, since it uses less digits than its factorization.

1210120102205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819729508.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1210120102205 its reverse (5022010210121), we get a palindrome (6232130312326).

The spelling of 1210120102205 in words is "one trillion, two hundred ten billion, one hundred twenty million, one hundred two thousand, two hundred five".