7890012120012 has 48 divisors (see below), whose sum is σ = 20119724255232. Its totient is φ = 2386620258880.

The previous prime is 7890012119999. The next prime is 7890012120113. The reversal of 7890012120012 is 2100212100987.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53582508 + ... + 53729555.

It is an arithmetic number, because the mean of its divisors is an integer number (419160921984).

Almost surely, 2^{7890012120012} is an apocalyptic number.

It is an amenable number.

7890012120012 is an abundant number, since it is smaller than the sum of its proper divisors (12229712135220).

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

7890012120012 is a wasteful number, since it uses less digits than its factorization.

7890012120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107312638 (or 107312636 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

Adding to 7890012120012 its reverse (2100212100987), we get a palindrome (9990224220999).

The spelling of 7890012120012 in words is "seven trillion, eight hundred ninety billion, twelve million, one hundred twenty thousand, twelve".