12270019 has 4 divisors (see below), whose sum is σ = 12281544. Its totient is φ = 12258496.

The previous prime is 12269989. The next prime is 12270047. The reversal of 12270019 is 91007221.

12270019 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91007221 = 43 ⋅2116447.

It is a cyclic number.

It is not a de Polignac number, because 12270019 - 2⁷ = 12269891 is a prime.

It is a super-2 number, since 2×12270019² = 301106732520722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12270319) 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, 3982 + ... + 6355.

It is an arithmetic number, because the mean of its divisors is an integer number (3070386).

Almost surely, 2^12270019 is an apocalyptic number.

12270019 is a deficient number, since it is larger than the sum of its proper divisors (11525).

12270019 is a wasteful number, since it uses less digits than its factorization.

12270019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11524.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 12270019 is about 3502.8586896990. The cubic root of 12270019 is about 230.6473194910.

The spelling of 12270019 in words is "twelve million, two hundred seventy thousand, nineteen".