1012021220012 has 12 divisors (see below), whose sum is σ = 1932040511016. Its totient is φ = 460009645440.

The previous prime is 1012021220009. The next prime is 1012021220047. The reversal of 1012021220012 is 2100221202101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11500241093 + ... + 11500241180.

It is an arithmetic number, because the mean of its divisors is an integer number (161003375918).

Almost surely, 2^{1012021220012} is an apocalyptic number.

It is an amenable number.

1012021220012 is a deficient number, since it is larger than the sum of its proper divisors (920019291004).

1012021220012 is a wasteful number, since it uses less digits than its factorization.

1012021220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000482288 (or 23000482286 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1012021220012 its reverse (2100221202101), we get a palindrome (3112242422113).

The spelling of 1012021220012 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty thousand, twelve".