1222234320172 has 12 divisors (see below), whose sum is σ = 2138948904736. Its totient is φ = 611106061680.

The previous prime is 1222234320137. The next prime is 1222234320173. The reversal of 1222234320172 is 2710234322221.

It is a happy number.

It is a super-2 number, since 2×1222234320172² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222234320173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524308 + ... + 2969275.

Almost surely, 2^{1222234320172} is an apocalyptic number.

It is an amenable number.

1222234320172 is a deficient number, since it is larger than the sum of its proper divisors (916714584564).

1222234320172 is a wasteful number, since it uses less digits than its factorization.

1222234320172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549208 (or 5549206 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 1222234320172 its reverse (2710234322221), we get a palindrome (3932468642393).

The spelling of 1222234320172 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-four million, three hundred twenty thousand, one hundred seventy-two".