20226222 has 24 divisors (see below), whose sum is σ = 46130760. Its totient is φ = 6387120.

The previous prime is 20226221. The next prime is 20226233. The reversal of 20226222 is 22262202.

20226222 is a `hidden beast` number, since 20 + 22 + 622 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20226195 and 20226204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226221) 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 11 ways as a sum of consecutive naturals, for example, 29229 + ... + 29912.

It is an arithmetic number, because the mean of its divisors is an integer number (1922115).

Almost surely, 2^20226222 is an apocalyptic number.

20226222 is an abundant number, since it is smaller than the sum of its proper divisors (25904538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20226222 is a wasteful number, since it uses less digits than its factorization.

20226222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59168 (or 59165 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20226222 is about 4497.3572239705. The cubic root of 20226222 is about 272.4613619712.

Adding to 20226222 its reverse (22262202), we get a palindrome (42488424).

The spelling of 20226222 in words is "twenty million, two hundred twenty-six thousand, two hundred twenty-two".