1012905921412 has 48 divisors (see below), whose sum is σ = 2211373688832. Its totient is φ = 394389182880.

The previous prime is 1012905921389. The next prime is 1012905921491. The reversal of 1012905921412 is 2141295092101.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551178 + ... + 1526305.

It is an arithmetic number, because the mean of its divisors is an integer number (46070285184).

Almost surely, 2^{1012905921412} is an apocalyptic number.

It is an amenable number.

1012905921412 is an abundant number, since it is smaller than the sum of its proper divisors (1198467767420).

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

1012905921412 is a wasteful number, since it uses less digits than its factorization.

1012905921412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079088 (or 2079086 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 1012905921412 in words is "one trillion, twelve billion, nine hundred five million, nine hundred twenty-one thousand, four hundred twelve".