12102021219 has 8 divisors (see below), whose sum is σ = 16440481872. Its totient is φ = 7915787360.

The previous prime is 12102021199. The next prime is 12102021221. The reversal of 12102021219 is 91212020121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12102021219 - 2⁵ = 12102021187 is a prime.

It is a super-2 number, since 2×12102021219² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102021195 and 12102021204.

It is not an unprimeable number, because it can be changed into a prime (12102021259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38056512 + ... + 38056829.

It is an arithmetic number, because the mean of its divisors is an integer number (2055060234).

Almost surely, 2^12102021219 is an apocalyptic number.

12102021219 is a deficient number, since it is larger than the sum of its proper divisors (4338460653).

12102021219 is an equidigital number, since it uses as much as digits as its factorization.

12102021219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76113397.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12102021219 in words is "twelve billion, one hundred two million, twenty-one thousand, two hundred nineteen".