20221233 has 8 divisors (see below), whose sum is σ = 27535488. Its totient is φ = 13193904.

The previous prime is 20221231. The next prime is 20221259. The reversal of 20221233 is 33212202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20221233 - 2¹ = 20221231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20221231) 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 7 ways as a sum of consecutive naturals, for example, 71566 + ... + 71847.

It is an arithmetic number, because the mean of its divisors is an integer number (3441936).

Almost surely, 2^20221233 is an apocalyptic number.

It is an amenable number.

20221233 is a deficient number, since it is larger than the sum of its proper divisors (7314255).

20221233 is a wasteful number, since it uses less digits than its factorization.

20221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143463.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20221233 is about 4496.8025306878. The cubic root of 20221233 is about 272.4389583555.

Adding to 20221233 its reverse (33212202), we get a palindrome (53433435).

It can be divided in two parts, 2022123 and 3, that multiplied together give a square (6066369 = 2463²).

The spelling of 20221233 in words is "twenty million, two hundred twenty-one thousand, two hundred thirty-three".