2012199947 has 2 divisors, whose sum is σ = 2012199948. Its totient is φ = 2012199946.

The previous prime is 2012199941. The next prime is 2012199977. The reversal of 2012199947 is 7499912102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012199947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012199898 and 2012199907.

It is not a weakly prime, because it can be changed into another prime (2012199941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006099973 + 1006099974.

It is an arithmetic number, because the mean of its divisors is an integer number (1006099974).

Almost surely, 2^2012199947 is an apocalyptic number.

2012199947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012199947 is an equidigital number, since it uses as much as digits as its factorization.

2012199947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2012199947 is about 44857.5517276634. The cubic root of 2012199947 is about 1262.4776867866.

The spelling of 2012199947 in words is "two billion, twelve million, one hundred ninety-nine thousand, nine hundred forty-seven".