2193222672 has 120 divisors (see below), whose sum is σ = 6412536000. Its totient is φ = 698874624.

The previous prime is 2193222659. The next prime is 2193222673. The reversal of 2193222672 is 2762223912.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2193222673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427579 + ... + 432677.

It is an arithmetic number, because the mean of its divisors is an integer number (53437800).

Almost surely, 2^2193222672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2193222672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3206268000).

2193222672 is an abundant number, since it is smaller than the sum of its proper divisors (4219313328).

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

2193222672 is a wasteful number, since it uses less digits than its factorization.

2193222672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245 (or 5236 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2193222672 is about 46831.8553123833. The cubic root of 2193222672 is about 1299.2545375007.

The spelling of 2193222672 in words is "two billion, one hundred ninety-three million, two hundred twenty-two thousand, six hundred seventy-two".