1220112310012 has 24 divisors (see below), whose sum is σ = 2193353726256. Its totient is φ = 593550225408.

The previous prime is 1220112309971. The next prime is 1220112310063. The reversal of 1220112310012 is 2100132110221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756723 + ... + 13845130.

It is an arithmetic number, because the mean of its divisors is an integer number (91389738594).

Almost surely, 2^{1220112310012} is an apocalyptic number.

It is an amenable number.

1220112310012 is a deficient number, since it is larger than the sum of its proper divisors (973241416244).

1220112310012 is a wasteful number, since it uses less digits than its factorization.

1220112310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27602157 (or 27602155 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1220112310012 its reverse (2100132110221), we get a palindrome (3320244420233).

The spelling of 1220112310012 in words is "one trillion, two hundred twenty billion, one hundred twelve million, three hundred ten thousand, twelve".