1012206819 has 8 divisors (see below), whose sum is σ = 1453425232. Its totient is φ = 622896480.

The previous prime is 1012206781. The next prime is 1012206841. The reversal of 1012206819 is 9186022101.

It is a happy number.

1012206819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012206819 - 2²⁰ = 1011158243 is a prime.

It is a super-2 number, since 2×1012206819² = 2049125288860197522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012206859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12976972 + ... + 12977049.

It is an arithmetic number, because the mean of its divisors is an integer number (181678154).

Almost surely, 2^1012206819 is an apocalyptic number.

1012206819 is a deficient number, since it is larger than the sum of its proper divisors (441218413).

1012206819 is a wasteful number, since it uses less digits than its factorization.

1012206819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25954037.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1012206819 is about 31815.1979248912. The cubic root of 1012206819 is about 1004.0524947685.

The spelling of 1012206819 in words is "one billion, twelve million, two hundred six thousand, eight hundred nineteen".