1110002121209 has 16 divisors (see below), whose sum is σ = 1148425313280. Its totient is φ = 1071745318080.

The previous prime is 1110002121199. The next prime is 1110002121257. The reversal of 1110002121209 is 9021212000111.

It is a cyclic number.

It is not a de Polignac number, because 1110002121209 - 2¹² = 1110002117113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1110002121269) 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, 24278279 + ... + 24323955.

It is an arithmetic number, because the mean of its divisors is an integer number (71776582080).

Almost surely, 2^{1110002121209} is an apocalyptic number.

It is an amenable number.

1110002121209 is a deficient number, since it is larger than the sum of its proper divisors (38423192071).

1110002121209 is an equidigital number, since it uses as much as digits as its factorization.

1110002121209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47480.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1110002121209 in words is "one trillion, one hundred ten billion, two million, one hundred twenty-one thousand, two hundred nine".