1015212012 has 12 divisors (see below), whose sum is σ = 2368828056. Its totient is φ = 338404000.

The previous prime is 1015211987. The next prime is 1015212049. The reversal of 1015212012 is 2102125101.

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

It is a junction number, because it is equal to n+sod(n) for n = 1015211982 and 1015212000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42300489 + ... + 42300512.

It is an arithmetic number, because the mean of its divisors is an integer number (197402338).

Almost surely, 2^1015212012 is an apocalyptic number.

1015212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1015212012 is an abundant number, since it is smaller than the sum of its proper divisors (1353616044).

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

1015212012 is a wasteful number, since it uses less digits than its factorization.

1015212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84601008 (or 84601006 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1015212012 is about 31862.3918122918. The cubic root of 1015212012 is about 1005.0451740789.

Adding to 1015212012 its reverse (2102125101), we get a palindrome (3117337113).

The spelling of 1015212012 in words is "one billion, fifteen million, two hundred twelve thousand, twelve".