1222256849688 has 96 divisors (see below), whose sum is σ = 3783471837600. Its totient is φ = 349188931584.

The previous prime is 1222256849683. The next prime is 1222256849713. The reversal of 1222256849688 is 8869486522221.

1222256849688 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 5 + 68 + 496 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222256849683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6861720 + ... + 7037592.

It is an arithmetic number, because the mean of its divisors is an integer number (39411164975).

Almost surely, 2^{1222256849688} is an apocalyptic number.

1222256849688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1222256849688 is an abundant number, since it is smaller than the sum of its proper divisors (2561214987912).

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

1222256849688 is a wasteful number, since it uses less digits than its factorization.

1222256849688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189681 (or 189674 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 1222256849688 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-six million, eight hundred forty-nine thousand, six hundred eighty-eight".