1020000000012 has 24 divisors (see below), whose sum is σ = 2720000000256. Its totient is φ = 291428571408.

The previous prime is 1020000000011. The next prime is 1020000000023. The reversal of 1020000000012 is 2100000000201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (1020000000011) 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, 6071428488 + ... + 6071428655.

It is an arithmetic number, because the mean of its divisors is an integer number (113333333344).

Almost surely, 2^{1020000000012} is an apocalyptic number.

1020000000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020000000012 is an abundant number, since it is smaller than the sum of its proper divisors (1700000000244).

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

1020000000012 is a wasteful number, since it uses less digits than its factorization.

1020000000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12142857157 (or 12142857155 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 1020000000012 its reverse (2100000000201), we get a palindrome (3120000000213).

The spelling of 1020000000012 in words is "one trillion, twenty billion, twelve", and thus it is an aban number and an uban number.