1222112020412 has 12 divisors (see below), whose sum is σ = 2138703970200. Its totient is φ = 611053743216.

The previous prime is 1222112020379. The next prime is 1222112020427. The reversal of 1222112020412 is 2140202112221.

It is a happy number.

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, 1420214 + ... + 2112162.

It is an arithmetic number, because the mean of its divisors is an integer number (178225330850).

Almost surely, 2^{1222112020412} is an apocalyptic number.

It is an amenable number.

1222112020412 is a deficient number, since it is larger than the sum of its proper divisors (916591949788).

1222112020412 is a wasteful number, since it uses less digits than its factorization.

1222112020412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133500 (or 1133498 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222112020412 its reverse (2140202112221), we get a palindrome (3362314132633).

The spelling of 1222112020412 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, twenty thousand, four hundred twelve".