1012021221112 has 16 divisors (see below), whose sum is σ = 2070043407000. Its totient is φ = 460009645920.

The previous prime is 1012021221109. The next prime is 1012021221151. The reversal of 1012021221112 is 2111221202101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5750120487 + ... + 5750120662.

Almost surely, 2^{1012021221112} is an apocalyptic number.

It is an amenable number.

1012021221112 is an abundant number, since it is smaller than the sum of its proper divisors (1058022185888).

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

1012021221112 is a wasteful number, since it uses less digits than its factorization.

1012021221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500241166 (or 11500241162 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012021221112 its reverse (2111221202101), we get a palindrome (3123242423213).

The spelling of 1012021221112 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty-one thousand, one hundred twelve".