1210002010109 has 4 divisors (see below), whose sum is σ = 1239514254300. Its totient is φ = 1180489765920.

The previous prime is 1210002010079. The next prime is 1210002010153. The reversal of 1210002010109 is 9010102000121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 506299133209 + 703702876900 = 711547^2 + 838870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210002010109 - 2²⁴ = 1209985232893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210002013109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14756122034 + ... + 14756122115.

It is an arithmetic number, because the mean of its divisors is an integer number (309878563575).

Almost surely, 2^{1210002010109} is an apocalyptic number.

It is an amenable number.

1210002010109 is a deficient number, since it is larger than the sum of its proper divisors (29512244191).

1210002010109 is an equidigital number, since it uses as much as digits as its factorization.

1210002010109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29512244190.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1210002010109 in words is "one trillion, two hundred ten billion, two million, ten thousand, one hundred nine".