20107222 has 4 divisors (see below), whose sum is σ = 30160836. Its totient is φ = 10053610.

The previous prime is 20107207. The next prime is 20107223. The reversal of 20107222 is 22270102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20107196 and 20107205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20107223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5026804 + ... + 5026807.

It is an arithmetic number, because the mean of its divisors is an integer number (7540209).

Almost surely, 2^20107222 is an apocalyptic number.

20107222 is a deficient number, since it is larger than the sum of its proper divisors (10053614).

20107222 is a wasteful number, since it uses less digits than its factorization.

20107222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053613.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 20107222 is about 4484.1077150309. The cubic root of 20107222 is about 271.9259728622.

Adding to 20107222 its reverse (22270102), we get a palindrome (42377324).

It can be divided in two parts, 2010722 and 2, that added together give a square (2010724 = 1418²).

The spelling of 20107222 in words is "twenty million, one hundred seven thousand, two hundred twenty-two".