12120022219 has 4 divisors (see below), whose sum is σ = 12201364800. Its totient is φ = 12038679640.

The previous prime is 12120022181. The next prime is 12120022267. The reversal of 12120022219 is 91222002121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12120022219 - 2²¹ = 12117925067 is a prime.

It is a super-2 number, since 2×12120022219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120022219.

It is not an unprimeable number, because it can be changed into a prime (12120022289) 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, 40671067 + ... + 40671364.

It is an arithmetic number, because the mean of its divisors is an integer number (3050341200).

Almost surely, 2^12120022219 is an apocalyptic number.

12120022219 is a deficient number, since it is larger than the sum of its proper divisors (81342581).

12120022219 is an equidigital number, since it uses as much as digits as its factorization.

12120022219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81342580.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 12120022219 in words is "twelve billion, one hundred twenty million, twenty-two thousand, two hundred nineteen".