12200019 has 16 divisors (see below), whose sum is σ = 18084864. Its totient is φ = 7264800.

The previous prime is 12200011. The next prime is 12200029. The reversal of 12200019 is 91000221.

It is a happy number.

It is not a de Polignac number, because 12200019 - 2³ = 12200011 is a prime.

It is a super-2 number, since 2×12200019² = 297680927200722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12199980 and 12200007.

It is not an unprimeable number, because it can be changed into a prime (12200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3837 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (1130304).

Almost surely, 2^12200019 is an apocalyptic number.

12200019 is a deficient number, since it is larger than the sum of its proper divisors (5884845).

12200019 is a wasteful number, since it uses less digits than its factorization.

12200019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12200019 is about 3492.8525591556. The cubic root of 12200019 is about 230.2078713030.

The spelling of 12200019 in words is "twelve million, two hundred thousand, nineteen".