22220302 has 16 divisors (see below), whose sum is σ = 36402912. Its totient is φ = 10110240.

The previous prime is 22220299. The next prime is 22220321. The reversal of 22220302 is 20302222.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4173 + ... + 7864.

It is an arithmetic number, because the mean of its divisors is an integer number (2275182).

Almost surely, 2^22220302 is an apocalyptic number.

22220302 is a deficient number, since it is larger than the sum of its proper divisors (14182610).

22220302 is a wasteful number, since it uses less digits than its factorization.

22220302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123.

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

The square root of 22220302 is about 4713.8415331871. The cubic root of 22220302 is about 281.1361236433.

Adding to 22220302 its reverse (20302222), we get a palindrome (42522524).

It can be divided in two parts, 22220 and 302, that added together give a palindrome (22522).

The spelling of 22220302 in words is "twenty-two million, two hundred twenty thousand, three hundred two".