20153222 has 8 divisors (see below), whose sum is σ = 30967272. Its totient is φ = 9830800.

The previous prime is 20153219. The next prime is 20153227. The reversal of 20153222 is 22235102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20153222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122804 + ... + 122967.

It is an arithmetic number, because the mean of its divisors is an integer number (3870909).

Almost surely, 2^20153222 is an apocalyptic number.

20153222 is a deficient number, since it is larger than the sum of its proper divisors (10814050).

20153222 is a wasteful number, since it uses less digits than its factorization.

20153222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245814.

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

The square root of 20153222 is about 4489.2340103853. The cubic root of 20153222 is about 272.1331798063.

Adding to 20153222 its reverse (22235102), we get a palindrome (42388324).

The spelling of 20153222 in words is "twenty million, one hundred fifty-three thousand, two hundred twenty-two".