1220110231112 has 16 divisors (see below), whose sum is σ = 2361503673600. Its totient is φ = 590375918160.

The previous prime is 1220110231079. The next prime is 1220110231201. The reversal of 1220110231112 is 2111320110221.

It is a happy 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, 2459899412 + ... + 2459899907.

It is an arithmetic number, because the mean of its divisors is an integer number (147593979600).

Almost surely, 2^{1220110231112} is an apocalyptic number.

It is an amenable number.

1220110231112 is a deficient number, since it is larger than the sum of its proper divisors (1141393442488).

1220110231112 is a wasteful number, since it uses less digits than its factorization.

1220110231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919799356 (or 4919799352 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1220110231112 its reverse (2111320110221), we get a palindrome (3331430341333).

The spelling of 1220110231112 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred thirty-one thousand, one hundred twelve".