20231222 has 16 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 9176040.

The previous prime is 20231203. The next prime is 20231243. The reversal of 20231222 is 22213202.

It is a super-2 number, since 2×20231222² = 818604687226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20231197 and 20231206.

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, 15179 + ... + 16457.

It is an arithmetic number, because the mean of its divisors is an integer number (2073600).

Almost surely, 2^20231222 is an apocalyptic number.

20231222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20231222 is a deficient number, since it is larger than the sum of its proper divisors (12946378).

20231222 is a wasteful number, since it uses less digits than its factorization.

20231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20231222 is about 4497.9130716367. The cubic root of 20231222 is about 272.4838112875.

Adding to 20231222 its reverse (22213202), we get a palindrome (42444424).

The spelling of 20231222 in words is "twenty million, two hundred thirty-one thousand, two hundred twenty-two".