12001020219 has 12 divisors (see below), whose sum is σ = 17380550200. Its totient is φ = 7979567904.

The previous prime is 12001020191. The next prime is 12001020259. The reversal of 12001020219 is 91202010021.

It is not a de Polignac number, because 12001020219 - 2⁸ = 12001019963 is a prime.

It is a super-2 number, since 2×12001020219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001020259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1755754 + ... + 1762575.

Almost surely, 2^12001020219 is an apocalyptic number.

12001020219 is a deficient number, since it is larger than the sum of its proper divisors (5379529981).

12001020219 is a wasteful number, since it uses less digits than its factorization.

12001020219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518714 (or 3518711 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 12001020219 in words is "twelve billion, one million, twenty thousand, two hundred nineteen".