1020221200012 has 24 divisors (see below), whose sum is σ = 2078941316256. Its totient is φ = 428987889408.

The previous prime is 1020221199997. The next prime is 1020221200057. The reversal of 1020221200012 is 2100021220201.

It is a happy number.

1020221200012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1020221199965 and 1020221200001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343738813 + ... + 343741780.

It is an arithmetic number, because the mean of its divisors is an integer number (86622554844).

Almost surely, 2^{1020221200012} is an apocalyptic number.

It is an amenable number.

1020221200012 is an abundant number, since it is smaller than the sum of its proper divisors (1058720116244).

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

1020221200012 is a wasteful number, since it uses less digits than its factorization.

1020221200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687480657 (or 687480655 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020221200012 its reverse (2100021220201), we get a palindrome (3120242420213).

The spelling of 1020221200012 in words is "one trillion, twenty billion, two hundred twenty-one million, two hundred thousand, twelve".