1222547672 has 8 divisors (see below), whose sum is σ = 2292276900. Its totient is φ = 611273832.

The previous prime is 1222547671. The next prime is 1222547701. The reversal of 1222547672 is 2767452221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222547671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76409222 + ... + 76409237.

Almost surely, 2^1222547672 is an apocalyptic number.

It is an amenable number.

1222547672 is a deficient number, since it is larger than the sum of its proper divisors (1069729228).

1222547672 is a wasteful number, since it uses less digits than its factorization.

1222547672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152818465 (or 152818461 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 1222547672 is about 34964.9491920123. The cubic root of 1222547672 is about 1069.2730007890.

Adding to 1222547672 its reverse (2767452221), we get a palindrome (3989999893).

The spelling of 1222547672 in words is "one billion, two hundred twenty-two million, five hundred forty-seven thousand, six hundred seventy-two".