1210220221112 has 16 divisors (see below), whose sum is σ = 2593329045360. Its totient is φ = 518665809024.

The previous prime is 1210220221099. The next prime is 1210220221187. The reversal of 1210220221112 is 2111220220121.

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, 10805537633 + ... + 10805537744.

It is an arithmetic number, because the mean of its divisors is an integer number (162083065335).

Almost surely, 2^{1210220221112} is an apocalyptic number.

It is an amenable number.

1210220221112 is an abundant number, since it is smaller than the sum of its proper divisors (1383108824248).

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

1210220221112 is a wasteful number, since it uses less digits than its factorization.

1210220221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611075390 (or 21611075386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1210220221112 its reverse (2111220220121), we get a palindrome (3321440441233).

Subtracting 1210220221112 from its reverse (2111220220121), we obtain a palindrome (900999999009).

The spelling of 1210220221112 in words is "one trillion, two hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".