20221153 has 2 divisors, whose sum is σ = 20221154. Its totient is φ = 20221152.

The previous prime is 20221151. The next prime is 20221183. The reversal of 20221153 is 35112202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14379264 + 5841889 = 3792^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221153 - 2¹ = 20221151 is a prime.

Together with 20221151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20221151) 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 as a sum of consecutive naturals, namely, 10110576 + 10110577.

It is an arithmetic number, because the mean of its divisors is an integer number (10110577).

Almost surely, 2^20221153 is an apocalyptic number.

It is an amenable number.

20221153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221153 is an equidigital number, since it uses as much as digits as its factorization.

20221153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20221153 is about 4496.7936354696. The cubic root of 20221153 is about 272.4385990773.

Adding to 20221153 its reverse (35112202), we get a palindrome (55333355).

The spelling of 20221153 in words is "twenty million, two hundred twenty-one thousand, one hundred fifty-three".