102112002209 has 4 divisors (see below), whose sum is σ = 116699431104. Its totient is φ = 87524573316.

The previous prime is 102112002127. The next prime is 102112002259. The reversal of 102112002209 is 902200211201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102112002209 - 2¹⁶ = 102111936673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102112002259) 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, 7293714437 + ... + 7293714450.

It is an arithmetic number, because the mean of its divisors is an integer number (29174857776).

Almost surely, 2^102112002209 is an apocalyptic number.

It is an amenable number.

102112002209 is a deficient number, since it is larger than the sum of its proper divisors (14587428895).

102112002209 is an equidigital number, since it uses as much as digits as its factorization.

102112002209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14587428894.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 102112002209 in words is "one hundred two billion, one hundred twelve million, two thousand, two hundred nine".