20203222 has 16 divisors (see below), whose sum is σ = 32713632. Its totient is φ = 9302400.

The previous prime is 20203217. The next prime is 20203237. The reversal of 20203222 is 22230202.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16222 + ... + 17422.

It is an arithmetic number, because the mean of its divisors is an integer number (2044602).

Almost surely, 2^20203222 is an apocalyptic number.

20203222 is a deficient number, since it is larger than the sum of its proper divisors (12510410).

20203222 is a wasteful number, since it uses less digits than its factorization.

20203222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20203222 is about 4494.7994393521. The cubic root of 20203222 is about 272.3580474362.

Adding to 20203222 its reverse (22230202), we get a palindrome (42433424).

The spelling of 20203222 in words is "twenty million, two hundred three thousand, two hundred twenty-two".