20223222 has 16 divisors (see below), whose sum is σ = 41751552. Its totient is φ = 6523560.

The previous prime is 20223221. The next prime is 20223257. The reversal of 20223222 is 22232202.

It is a super-2 number, since 2×20223222² = 817957416122568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54178 + ... + 54549.

It is an arithmetic number, because the mean of its divisors is an integer number (2609472).

Almost surely, 2^20223222 is an apocalyptic number.

20223222 is an abundant number, since it is smaller than the sum of its proper divisors (21528330).

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

20223222 is a wasteful number, since it uses less digits than its factorization.

20223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108763.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20223222 is about 4497.0236823926. The cubic root of 20223222 is about 272.4478906054.

Adding to 20223222 its reverse (22232202), we get a palindrome (42455424).

It can be divided in two parts, 20223 and 222, that multiplied together give a triangular number (4489506 = T₂₉₉₆).

The spelling of 20223222 in words is "twenty million, two hundred twenty-three thousand, two hundred twenty-two".