20221133 has 2 divisors, whose sum is σ = 20221134. Its totient is φ = 20221132.

The previous prime is 20221127. The next prime is 20221141. The reversal of 20221133 is 33112202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 4831204 = 3923^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221133 - 2⁸ = 20220877 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110566 + 10110567.

It is an arithmetic number, because the mean of its divisors is an integer number (10110567).

Almost surely, 2^20221133 is an apocalyptic number.

It is an amenable number.

20221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221133 is an equidigital number, since it uses as much as digits as its factorization.

20221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20221133 is about 4496.7914116623. The cubic root of 20221133 is about 272.4385092576.

Adding to 20221133 its reverse (33112202), we get a palindrome (53333335).

The spelling of 20221133 in words is "twenty million, two hundred twenty-one thousand, one hundred thirty-three".