1012220012 has 24 divisors (see below), whose sum is σ = 1813855680. Its totient is φ = 494032640.

The previous prime is 1012220009. The next prime is 1012220017. The reversal of 1012220012 is 2100222101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012219975 and 1012220002.

It is not an unprimeable number, because it can be changed into a prime (1012220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66212 + ... + 80052.

It is an arithmetic number, because the mean of its divisors is an integer number (75577320).

Almost surely, 2^1012220012 is an apocalyptic number.

It is an amenable number.

1012220012 is a deficient number, since it is larger than the sum of its proper divisors (801635668).

1012220012 is a wasteful number, since it uses less digits than its factorization.

1012220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14281 (or 14279 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1012220012 is about 31815.4052622311. The cubic root of 1012220012 is about 1004.0568569887.

Adding to 1012220012 its reverse (2100222101), we get a palindrome (3112442113).

The spelling of 1012220012 in words is "one billion, twelve million, two hundred twenty thousand, twelve".