1222665172744 has 16 divisors (see below), whose sum is σ = 2366448721920. Its totient is φ = 591612180240.

The previous prime is 1222665172721. The next prime is 1222665172747. The reversal of 1222665172744 is 4472715662221.

It is a super-2 number, since 2×1222665172744² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222665172747) 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 3 ways as a sum of consecutive naturals, for example, 2465050504 + ... + 2465050999.

It is an arithmetic number, because the mean of its divisors is an integer number (147903045120).

Almost surely, 2^{1222665172744} is an apocalyptic number.

It is an amenable number.

1222665172744 is a deficient number, since it is larger than the sum of its proper divisors (1143783549176).

1222665172744 is a wasteful number, since it uses less digits than its factorization.

1222665172744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930101540 (or 4930101536 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The spelling of 1222665172744 in words is "one trillion, two hundred twenty-two billion, six hundred sixty-five million, one hundred seventy-two thousand, seven hundred forty-four".