1004220012 has 12 divisors (see below), whose sum is σ = 2343180056. Its totient is φ = 334740000.

The previous prime is 1004219999. The next prime is 1004220013. The reversal of 1004220012 is 2100224001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 83685001 = 1004220012 / (1 + 0 + 0 + 4 + 2 + 2 + 0 + 0 + 1 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 1004220012.

It is not an unprimeable number, because it can be changed into a prime (1004220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41842489 + ... + 41842512.

Almost surely, 2^1004220012 is an apocalyptic number.

1004220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1004220012 is an abundant number, since it is smaller than the sum of its proper divisors (1338960044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1004220012 is a wasteful number, since it uses less digits than its factorization.

1004220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83685008 (or 83685006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1004220012 is about 31689.4306039096. The cubic root of 1004220012 is about 1001.4046965703.

Adding to 1004220012 its reverse (2100224001), we get a palindrome (3104444013).

The spelling of 1004220012 in words is "one billion, four million, two hundred twenty thousand, twelve".