2153222 has 4 divisors (see below), whose sum is σ = 3229836. Its totient is φ = 1076610.

The previous prime is 2153209. The next prime is 2153227. The reversal of 2153222 is 2223512.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2153222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538304 + ... + 538307.

It is an arithmetic number, because the mean of its divisors is an integer number (807459).

2^2153222 is an apocalyptic number.

2153222 is a deficient number, since it is larger than the sum of its proper divisors (1076614).

2153222 is a wasteful number, since it uses less digits than its factorization.

2153222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076613.

The product of its digits is 240, while the sum is 17.

The square root of 2153222 is about 1467.3861114240. The cubic root of 2153222 is about 129.1307290008.

Adding to 2153222 its reverse (2223512), we get a palindrome (4376734).

The spelling of 2153222 in words is "two million, one hundred fifty-three thousand, two hundred twenty-two".