12022102009 has 4 divisors (see below), whose sum is σ = 12654844240. Its totient is φ = 11389359780.

The previous prime is 12022101997. The next prime is 12022102031. The reversal of 12022102009 is 90020122021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90020122021 = 19 ⋅4737901159.

It is a cyclic number.

It is not a de Polignac number, because 12022102009 - 2⁵ = 12022101977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 632742211 = 12022102009 / (1 + 2 + 0 + 2 + 2 + 1 + 0 + 2 + 0 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022102069) 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, 316371087 + ... + 316371124.

It is an arithmetic number, because the mean of its divisors is an integer number (3163711060).

Almost surely, 2^12022102009 is an apocalyptic number.

12022102009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12022102009 is a deficient number, since it is larger than the sum of its proper divisors (632742231).

12022102009 is an equidigital number, since it uses as much as digits as its factorization.

12022102009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632742230.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 12022102009 in words is "twelve billion, twenty-two million, one hundred two thousand, nine".